公开(公告)号：US08743465B2

公开(公告)日：2014-06-03

申请号：US13355893

申请日：2012-01-23

Applicant: Takahiro Totani ,  Masayuki Takagi ,  Toshiaki Miyao ,  Akira Komatsu ,  Takashi Takeda

Inventor： Takahiro Totani ,  Masayuki Takagi ,  Toshiaki Miyao ,  Akira Komatsu ,  Takashi Takeda

IPC: G02B27/14

Abstract: A thickness of a tapered part provided at the deeper side (−X side) in a light guide direction of a light transmission member is smaller toward the deeper side, and thus, a reflection angle of ghost light that has passed through a fourth reflection surface provided with a half mirror layer and reached the light transmission member gradually becomes smaller within the tapered part and no longer satisfies a total reflection condition, and the light is ejected to the outside in the position diverging from an eye of an observer. That is, the tapered part may prevent the ghost light from reaching the eye and good see-through observation can be realized.

公开(公告)号：US08723475B2

公开(公告)日：2014-05-13

申请号：US13329881

申请日：2011-12-19

Applicant: Akihiro Nishizawa ,  Takashi Takeda

Inventor： Akihiro Nishizawa ,  Takashi Takeda

IPC: H02J7/00

Abstract: A voltage-detecting circuit includes a flying capacitor; a first switch circuit allowing plural electric cells connected in series, so that polarity of voltage across electrodes of the flying capacitor charged by one of the electric cells is opposite to polarity of voltage across the electrodes of the flying capacitor charged by an adjacent one of the electric cells; a second switch circuit discharging the flying capacitor; an output circuit outputting a signal depending on the voltage across the flying capacitor; a shield arranged around the flying capacitor electrodes to substantially equalize parasitic capacitances between the shield and each of the electrodes; and a voltage-controlling circuit equalizing voltage between one of the electrodes of the flying capacitor and the shield when charging the flying capacitor, with voltage between another one of the electrodes of the flying capacitor and the shield when discharging the flying capacitor.

公开(公告)号：US08662686B2

公开(公告)日：2014-03-04

申请号：US13218927

申请日：2011-08-26

Applicant: Masayuki Takagi ,  Toshiaki Miyao ,  Takahiro Totani ,  Akira Komatsu ,  Takashi Takeda

Inventor： Masayuki Takagi ,  Toshiaki Miyao ,  Takahiro Totani ,  Akira Komatsu ,  Takashi Takeda

IPC: G02B5/08

CPC classification number: G02B27/0172 ,  G02B6/00 ,  G02B6/0036 ,  G02B6/0058 ,  G02B2027/0118

Abstract: Since a distance from an image extraction part to a light exiting surface is shorter downstream in an optical path than upstream in the optical path in relation to Z direction that is an arraying direction of reflection units, image light that propagates to pass between the image extraction part and the light exiting surface without becoming incident on the reflection units and therefore cannot be extracted to outside can be reduced. That is, since image light having a large total reflection angle in a light guide plate can be securely made incident on the image extraction part and efficiently extracted from the light exiting surface, light use efficiency in image formation can be enhanced. Thus, a virtual image display apparatus with brightness and high performance can be provided.

Abstract translation: 由于从图像提取部到光出射面的距离相对于作为反射单元的排列方向的Z方向的光路的上游在光路的下游较短，所以在图像提取之间传播的图像光 部分和光出射表面而不会入射到反射单元上，因此不能将其提取到外部。 也就是说，由于导光板中具有大的全反射角的图像光可以牢固地入射到图像提取部分上并且有效地从光出射表面提取，因此可以提高图像形成中的光利用效率。 因此，可以提供具有亮度和高性能的虚像显示装置。

公开(公告)号：US08587869B2

公开(公告)日：2013-11-19

申请号：US13361249

申请日：2012-01-30

Applicant: Takahiro Totani ,  Masayuki Takagi ,  Toshiaki Miyao ,  Akira Komatsu ,  Takashi Takeda

Inventor： Takahiro Totani ,  Masayuki Takagi ,  Toshiaki Miyao ,  Akira Komatsu ,  Takashi Takeda

IPC: G02B27/14

CPC classification number: G02B27/0172 ,  G02B6/00 ,  G02B6/0045 ,  G02B2027/0112 ,  G02B2027/0118 ,  G02B2027/0123 ,  G02B2027/0125 ,  G02B2027/0178 ,  H04N13/111 ,  H04N13/332 ,  H04N13/344

Abstract: A half mirror layer has an angle dependency in which when an angle of incidence becomes larger than the angle of incidence range of image light, reflectance increases, such that it is possible to prevent unintended light, which is emitted to a light transmitting member from a light guiding member and is reflected inside a light transmitting member, from being returned to a light emission portion of the light guiding member after passing through the half mirror layer as a reflective film at a relatively large angle of incidence. Therefore, it is possible to prevent the image light passed through the light transmitting member from becoming ghost light while mitigating the demand for increasing processing accuracy of the light transmitting member, and bonding accuracy between the light guiding member and the light transmitting member.

Abstract translation: 半透镜层具有角度依赖性，其中当入射角变得大于图像光的入射范围时，反射率增加，使得可以防止从光发射部件发射的非预期光 导光构件，并且在透光构件内反射，以相对较大的入射角度通过作为反射膜的半反射镜层返回到导光构件的发光部。 因此，可以防止通过透光部件的图像光变得重影，同时减轻对透光部件的加工精度提高的要求，以及导光部件与透光部件的接合精度。

公开(公告)号：US08564883B2

公开(公告)日：2013-10-22

申请号：US13363732

申请日：2012-02-01

Applicant: Takahiro Totani ,  Masayuki Takagi ,  Toshiaki Miyao ,  Akira Komatsu ,  Takashi Takeda

Inventor： Takahiro Totani ,  Masayuki Takagi ,  Toshiaki Miyao ,  Akira Komatsu ,  Takashi Takeda

IPC: G02B27/14 ,  G02B27/01

CPC classification number: G02B27/0172 ,  G02B6/0045 ,  G02B2027/0125 ,  G02B2027/0178

Abstract: Image light reflected by a third reflective surface of a light incidence portion is propagated while being totally reflected by first and second reflective surfaces of a light guiding portion, is reflected by a fourth reflective surface of a light emission portion, and is incident to observer's eye as a virtual image. At this time, the number of times of reflection of first image light, which is emitted from a first partial region of an image display device, in the light guiding portion, and the number of times of reflection of second image light, which is emitted from a second partial region of the image display device in the light guiding portion are different from each other, such that it is possible to take in the image light beams from the different partial regions of the image display device with a relatively wide angle of view.

Abstract translation: 由光入射部分的第三反射表面反射的图像光在被导光部分的第一和第二反射表面全面反射的同时传播，被发光部分的第四反射表面反射，并入射到观察者的眼睛 作为虚拟图像。 此时，从导光部分的图像显示装置的第一部分区域发射的第一图像光的反射次数和发射的第二图像光的反射次数 在导光部分中的图像显示装置的第二部分区域彼此不同，使得可以以相对宽的视角从图像显示装置的不同部分区域拍摄来自图像的光束 。

公开(公告)号：US08525482B2

公开(公告)日：2013-09-03

申请号：US12617755

申请日：2009-11-13

Applicant: Takashi Takeda

Inventor： Takashi Takeda

IPC: H02J7/00

CPC classification number: H02J7/0029 ,  H02J2007/0039

Abstract: An overcurrent protection circuit of a rechargeable battery includes a current detection terminal and an overcurrent return resistor connecting part. A voltage converted from a discharge current of the rechargeable battery is detected at the current detection terminal. The overcurrent return resistor connecting part connects the current detection terminal to overcurrent detection resistors having different resistances in accordance with a level of the voltage detected at the current detection terminal when the voltage detected at the current detection terminal is equal to or greater than a discharge overcurrent detection voltage and a discharge overcurrent state in which an overcurrent flows from the rechargeable battery is detected.

Abstract translation: 可再充电电池的过电流保护电路包括电流检测端子和过电流返回电阻器连接部件。 在当前检测端子处检测从可再充电电池的放电电流转换的电压。 当电流检测端检测到的电压等于或大于放电过电流时，过电流返回电阻连接部分将电流检测端子连接到具有不同电阻的过电流检测电阻器， 检测电压和从可再充电电池流过过电流的放电过电流状态。

公开(公告)号：US08513838B2

公开(公告)日：2013-08-20

申请号：US12777485

申请日：2010-05-11

Applicant: Junichi Toukairin ,  Takashi Takeda ,  Yoshihiro Komuro ,  Yuji Kishima ,  Yasuoki Kawahata

Inventor： Junichi Toukairin ,  Takashi Takeda ,  Yoshihiro Komuro ,  Yuji Kishima ,  Yasuoki Kawahata

IPC: H02K7/14 ,  H02K5/16 ,  H02K11/00

CPC classification number: B25F5/008 ,  H02K7/145 ,  H02K11/33 ,  H02K2211/03

Abstract: An electric power tool includes: a motor including a motor shaft; a tip tool driven by the motor; a housing that houses the motor; a switching element for driving the motor; and a bearing that can retain the motor shaft. The switching element is provided so as to overlap with the bearing in a direction of the motor shaft inside the housing.

Abstract translation: 电动工具包括：电动机，包括电动机轴; 由电机驱动的尖端工具; 容纳电机的房屋; 用于驱动马达的开关元件; 以及可以保持电机轴的轴承。 开关元件设置成与轴承在壳体内的电动机轴的方向上重叠。

公开(公告)号：US08449123B2

公开(公告)日：2013-05-28

申请号：US12968414

申请日：2010-12-15

Applicant: Yasushi Mizoguchi ,  Hidekazu Kobayashi ,  Shuichi Wakabayashi ,  Taisuke Yamauchi ,  Takashi Takeda

Inventor： Yasushi Mizoguchi ,  Hidekazu Kobayashi ,  Shuichi Wakabayashi ,  Taisuke Yamauchi ,  Takashi Takeda

IPC: G02F1/1335 ,  G02F1/01 ,  G02B26/10

CPC classification number: G02B27/104 ,  G02B5/0236 ,  G02B5/0263 ,  G02B5/0289 ,  G02B26/085 ,  G02B26/101 ,  G02B27/145 ,  G02F1/133362 ,  G02F1/1334 ,  G02F1/135

Abstract: An image forming apparatus includes: a screen having a display surface; and a projector that renders an image by scanning light on the display screen, wherein the screen selects, independently in respective regions of the display surface, a light transmission state in which the light is transmitted and a light diffusion state in which the light is diffused, the screen being configured such that the region where address light is irradiated is in the light diffusion state and the region where the address light is not irradiated is in the light transmission state, and the projector scans the address light on the display surface such that an area of the display surface corresponding to an image displayed on the display surface changes to the light diffusion state.

Abstract translation: 一种图像形成装置，包括：具有显示面的屏幕; 以及投影仪，其通过在所述显示屏幕上扫描光而呈现图像，其中所述屏幕独立地在所述显示表面的各个区域中选择所述光被透射的透光状态和所述光被漫射的光扩散状态 所述屏幕被配置为使得所述地址光被照射的区域处于所述光扩散状态，并且所述地址光未被照射的区域处于所述透光状态，并且所述投影仪扫描所述显示表面上的地址灯，使得 与显示面上显示的图像对应的显示面的区域变为光扩散状态。

公开(公告)号：US20130032250A1

公开(公告)日：2013-02-07

申请号：US13641943

申请日：2011-03-24

Applicant: Toyoyuki Sato ,  Yasuyuki Yamamoto ,  Takashi Kato ,  Masayuki Nagahori ,  Hirotaka Kamikihara ,  Takashi Takeda

Inventor： Toyoyuki Sato ,  Yasuyuki Yamamoto ,  Takashi Kato ,  Masayuki Nagahori ,  Hirotaka Kamikihara ,  Takashi Takeda

IPC: B23K7/00 ,  B23K7/06

CPC classification number: F23D14/42 ,  B23K7/00 ,  B23K35/228 ,  B23K35/38 ,  F23D14/22 ,  F23D14/32 ,  F23D14/54 ,  F23K2900/05004

Abstract: A gas cutting method is provided which includes: mixing hydrogen gas and hydrocarbon gas to acquire fuel gas; ejecting a preheating flame, which is formed by mixing and igniting the fuel gas and preheating oxygen gas, from an end of a cutting tip to heat a workpiece; and ejecting cutting hydrogen gas to the heated workpiece to cut the workpiece. Here, the content of the hydrocarbon gas in the fuel gas is more than 0 vol % and equal to or less than 4 vol %.

Abstract translation: 提供了一种气体切割方法，包括：混合氢气和烃气以获得燃料气体; 喷射通过从切割尖端的端部混合并点燃燃料气体和预热氧气形成的预热火焰以加热工件; 并将切割氢气喷射到加热的工件上以切割工件。 这里，燃料气体中的烃气体的含量大于0体积％且为4体积％以下。

公开(公告)号：US20120236453A1

公开(公告)日：2012-09-20

申请号：US13230890

申请日：2011-09-13

Applicant: Akihiro NISHIZAWA ,  Takashi Takeda

Inventor： Akihiro NISHIZAWA ,  Takashi Takeda

IPC: H02H3/24 ,  H02H3/20

CPC classification number: H02H7/18 ,  H01M10/0525 ,  H01M10/425 ,  H01M10/441 ,  H01M10/482

Abstract: A transmitter/receiver circuit includes secondary batteries connected in series, a first protection circuit in a high voltage side of the secondary batteries and including a transmitter circuit increasing a voltage of a binary signal to a level that is a first voltage higher than an anode voltage of a first secondary battery connected to the first protection circuit, and a second protection circuit in a low voltage side of the secondary batteries and including a receiver circuit that receives the binary signal from the transmitter circuit via a wiring and including a shift part decreasing the voltage of the binary signal to a level that is a second voltage lower than a cathode voltage of a second secondary battery connected to the second protection circuit, and a detection part that determines that the wiring is disconnected when the voltage of the binary signal is lower than a reference voltage.

Abstract translation: 发送器/接收器电路包括串联连接的二次电池，在二次电池的高压侧的第一保护电路，并且包括将二进制信号的电压提高到高于阳极电压的第一电压的电平的发送器电路 连接到第一保护电路的第一二次电池和二次电池的低压侧的第二保护电路，并且包括接收器电路，其经由布线从发送器电路接收二进制信号，并且包括减速部分 二进制信号的电压为低于连接到第二保护电路的第二二次电池的阴极电压的第二电压的电平，以及当二进制信号的电压较低时确定布线断开的检测部分 比参考电压。