公开(公告)号：US20240011606A1

公开(公告)日：2024-01-11

申请号：US18252673

申请日：2021-10-14

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Hiroshi KITANO ,  Takanori AKETA ,  Taisuke NISHIMORI ,  Kenichiro TANAKA

IPC: F21K9/64 ,  F21V33/00 ,  F21V1/04

CPC classification number: F21K9/64 ,  F21V33/006 ,  F21V1/04 ,  F21Y2115/30

Abstract: A lighting system includes a light source unit and a light-distributing member. The light source unit includes a laser light source. The light-distributing member has the function of reflecting incident light that has been emitted as a beam of light from the light source unit toward a target space. The light-distributing member transforms the incident light into lighting light having a different light distribution property from the incident light and distributes the lighting light over the target space.

公开(公告)号：US20180329130A1

公开(公告)日：2018-11-15

申请号：US15977366

申请日：2018-05-11

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Kenichiro TANAKA

IPC: F21V8/00 ,  F21S41/24 ,  F21S41/16 ,  F21S41/176 ,  G02B23/24

CPC classification number: G02B6/0003 ,  F21S41/16 ,  F21S41/176 ,  F21S41/24 ,  F21W2131/105 ,  F21W2131/411 ,  F21Y2115/30 ,  G02B23/2469

Abstract: A light source device according to an embodiment includes a solid-state light source, and an optical transmission fiber. The optical transmission fiber includes a wavelength conversion core, a light guide core, and a clad, the wavelength conversion core absorbing excitation light to generate a population inversion state of electrons and including a wavelength conversion material emitting wavelength converted light in a visible light region, the light guide core covering a periphery of the wavelength conversion core and transmitting the wavelength converted light from a first end face side to a second end face side, and the clad covering a periphery of the light guide core. In the optical transmission fiber, the wavelength converted light propagating in the light guide core generates stimulated emission, and the excitation light and the wavelength converted light amplified by the stimulated emission are emitted from the second end face.

公开(公告)号：US20170211758A1

公开(公告)日：2017-07-27

申请号：US15412538

申请日：2017-01-23

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Ikko KUZUHARA ,  Kenichiro TANAKA

IPC: F21K9/68 ,  F21V7/04 ,  F21V7/00

CPC classification number: F21K9/68 ,  F21K9/90 ,  F21V7/0025 ,  F21V7/041 ,  F21V7/22 ,  F21Y2113/17 ,  F21Y2115/10 ,  H01L2224/48091 ,  H01L2924/00014

Abstract: A light source and corresponding method of manufacturing are provided. The light source includes a base. A first light-emitting element is disposed on the base and emits first emission light having a first spectrum. A second light-emitting element is disposed on the base adjacent to the first light-emitting element. The second light-emitting element emits second emission light having a second spectrum different from the first spectrum. A reflector is disposed between the first light-emitting element and the second light-emitting element. The reflector reflects, among components of the first emission light, a component of the first emission light that travels toward the second light-emitting element.

公开(公告)号：US20180040706A1

公开(公告)日：2018-02-08

申请号：US15728141

申请日：2017-10-09

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Saichirou KANEKO ,  Hiroto YAMAGIWA ,  Ayanori IKOSHI ,  Masayuki KURODA ,  Manabu YANAGIHARA ,  Kenichiro TANAKA ,  Tetsuyuki FUKUSHIMA

IPC: H01L29/47 ,  H01L29/778 ,  H01L29/205 ,  H01L21/28 ,  H01L29/20 ,  H01L29/10 ,  H01L29/872 ,  H01L29/06 ,  H01L29/423

CPC classification number: H01L29/475 ,  H01L21/28 ,  H01L29/0619 ,  H01L29/1029 ,  H01L29/1066 ,  H01L29/2003 ,  H01L29/205 ,  H01L29/42316 ,  H01L29/7786 ,  H01L29/7787 ,  H01L29/872

Abstract: In a semiconductor device in the present disclosure, a first nitride semiconductor layer has a two-dimensional electron gas channel in a vicinity of an interface with a second nitride semiconductor layer. In plan view, an electrode portion is provided between a first electrode and a second electrode with a space between the first electrode and the second electrode, and a space between the second electrode and the electrode portion is smaller than the space between the first electrode and the electrode portion. An energy barrier is provided in a junction surface between the electrode portion and the second nitride semiconductor layer, the energy barrier indicating a rectifying action in a forward direction from the electrode portion to the second nitride semiconductor layer, and a bandgap of the second nitride semiconductor layer is wider than a bandgap of the first nitride semiconductor layer.

公开(公告)号：US20160351676A1

公开(公告)日：2016-12-01

申请号：US15234775

申请日：2016-08-11

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Saichirou KANEKO ,  Hiroto YAMAGIWA ,  Ayanori IKOSHI ,  Masayuki KURODA ,  Manabu YANAGIHARA ,  Kenichiro TANAKA ,  Tetsuyuki FUKUSHIMA

IPC: H01L29/47 ,  H01L29/205 ,  H01L29/20 ,  H01L29/778 ,  H01L29/872

CPC classification number: H01L29/475 ,  H01L21/28 ,  H01L29/0619 ,  H01L29/1029 ,  H01L29/1066 ,  H01L29/2003 ,  H01L29/205 ,  H01L29/42316 ,  H01L29/7786 ,  H01L29/7787 ,  H01L29/872

Abstract: In a semiconductor device in the present disclosure, a first nitride semiconductor layer has a two-dimensional electron gas channel in a vicinity of an interface with a second nitride semiconductor layer. In plan view, an electrode portion is provided between a first electrode and a second electrode with a space between the first electrode and the second electrode, and a space between the second electrode and the electrode portion is smaller than the space between the first electrode and the electrode portion. An energy barrier is provided in a junction surface between the electrode portion and the second nitride semiconductor layer, the energy barrier indicating a rectifying action in a forward direction from the electrode portion to the second nitride semiconductor layer, and a bandgap of the second nitride semiconductor layer is wider than a bandgap of the first nitride semiconductor layer.

公开(公告)号：US20240087433A1

公开(公告)日：2024-03-14

申请号：US18262119

申请日：2022-01-22

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Takanori AKETA ,  Kenichiro TANAKA ,  Jin YOSHIZAWA ,  Shingo NAGATOMO ,  Kazuki KITAMURA ,  Tatsuya TAKAHASHI ,  Tatsuo KOGA ,  Tomonori YAMADA ,  Kazuto URA

IPC: G08B5/36 ,  G01C21/20 ,  G05D1/02 ,  H05B45/20 ,  H05B47/105 ,  H05B47/155

CPC classification number: G08B5/36 ,  G01C21/206 ,  G05D1/0214 ,  H05B45/20 ,  H05B47/105 ,  H05B47/155 ,  G08G1/123

Abstract: A lighting system includes a plurality of lighting devices and a control device. The plurality of lighting devices are installed in a facility. The control device controls the plurality of lighting devices. The control device controls lighting light projected by at least one lighting device, belonging to the plurality of lighting devices, into colored lighting light, of which a color is different from a color white, to give, upon acquiring information about an event in question, a sign depending on the event in question.

公开(公告)号：US20230238780A1

公开(公告)日：2023-07-27

申请号：US18008589

申请日：2021-06-10

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Takanori AKETA ,  Kenichiro TANAKA ,  Koji TSUBAKIMOTO ,  Noriaki MIYANAGA

IPC: H01S5/50 ,  H01L33/50 ,  H01L25/16 ,  H01L33/58 ,  H01S5/065 ,  H01S5/06 ,  H01S5/10 ,  H05B45/20

CPC classification number: H01S5/50 ,  H01L33/502 ,  H01L25/167 ,  H01L33/58 ,  H01S5/0656 ,  H01S5/0611 ,  H01S5/1092 ,  H05B45/20

Abstract: A light-emitting device includes an optical amplifier and gives off output light from optical amplifier by making a plurality of seed light rays, having mutually different wavelengths, incident on optical amplifier. Optical amplifier includes a medium portion containing a wavelength-converting element. Optical amplifier has wavelength-converting element thereof excited by excitation light to produce a plurality of partially coherent light rays, of which wavelengths are respectively the same as the mutually different wavelengths of plurality of seed light rays, thereby giving off, as output light, a multi-wavelength light beam. Excitation light has a shorter wavelength than any of plurality of seed light rays and is incident on the medium portion. Multi-wavelength light beam includes a plurality of light rays amplified. Plurality of light rays amplified have wavelengths, which are respectively the same as mutually different wavelengths of plurality of seed light rays.

公开(公告)号：US20230151936A1

公开(公告)日：2023-05-18

申请号：US17915868

申请日：2021-03-16

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Hiroshi KITANO ,  Kenichiro TANAKA ,  Takanori AKETA ,  Yoshiyuki TAKEGAWA ,  Satoshi HYODO

IPC: F21S8/02 ,  F21S2/00 ,  F21V7/05

CPC classification number: F21S8/026 ,  F21S2/00 ,  F21V7/05

Abstract: A construction component forms at least a part of a structure that faces a target space. The construction component has a first function, a second function, and a third function. The first function is a function of emitting illumination light toward the target space. The second function is a function of allowing incident light to enter the construction component. The incident light is emitted from a light source disposed out of a projection area, viewed from the target space, of the construction component and is incident on the construction component via a light transmission member. The third function is a function of converting the incident light into the illumination light.

公开(公告)号：US20250164138A1

公开(公告)日：2025-05-22

申请号：US18841969

申请日：2023-02-02

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Naoto IZUMOTO ,  Keita KANAMORI ,  Kenichiro TANAKA

IPC: F24F11/64 ,  F24F110/10 ,  F24F110/20 ,  F24F110/50 ,  F24F120/12

Abstract: An environment control system is an environment control system that controls an environment of a target space. The environment control system includes: an obtainer that obtains biological information of a person present in the target space and environmental information of the target space; an estimator that estimates, based on the biological information and the environmental information obtained by the obtainer, a position of the person in the target space and a condition level indicating a level of comfort felt by the person in regard to the environment; a generator that generates, based on the position and the condition level of the person estimated by the estimator, a control signal that controls an operation of a device provided in the target space; and an outputter that outputs the control signal generated by the generator to the device.

公开(公告)号：US20250030345A1

公开(公告)日：2025-01-23

申请号：US18713089

申请日：2022-09-27

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Ryusuke KANOMATA ,  Shinji UJITA ,  Kenichiro TANAKA ,  Takeshi NAKAYASHIKI ,  Takayuki HIROKAWA

IPC: H02M3/158 ,  H02M1/00 ,  H02M7/44

Abstract: The power conversion device can undergo autonomous search control for ZVS without a larger circuit area or lower reliability. The power conversion device performs, in each switching cycle, an operation of turning the control switch (CTLSW) on and afterward off while the synchronous rectification switch (SRSW) is off, and then turning the synchronous rectification switch on and afterward off while the control switch is off. Whether the inductor current (iL) is positive or negative is detected at the detection timing backed by a predetermined period (Text) from a timing at which the synchronous rectification switch switches from on to off, based on the detection result, the on-period (TOFF) of the synchronous rectification switch is corrected.