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公开(公告)号:US20240302511A1
公开(公告)日:2024-09-12
申请号:US18668290
申请日:2024-05-20
Inventor: SHINYA OKAMOTO , KATSUYA NOZAWA , TASUKU NAKAMURA , YASUHISA INADA
CPC classification number: G01S7/4972 , G01S7/4818 , G01S7/4876 , G01S7/493
Abstract: A distance measurement system includes a light source, a wavelength conversion module that generates a harmonic G1 with which a target S is to be irradiated as guide light by converting a wavelength of a part of a fundamental wave L1 of light L0 emitted from the light source, a photodetector that detects reflected light L1r generated by reflection, on the target S, the fundamental wave L1 that has passed through the wavelength conversion module, and a signal processing unit that calculates a distance to the target S on the basis of a detection result of the photodetector.
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公开(公告)号:US20220310868A1
公开(公告)日:2022-09-29
申请号:US17805471
申请日:2022-06-06
Inventor: EIJI TAKEDA , SHINYA OKAMOTO
IPC: H01L31/108 , H01L31/0256 , H01L31/0224
Abstract: An optical device includes: a silicon substrate in which a plane direction of a crystal plane of a principal surface is a (111) plane, the principal surface having an uneven structure; and a conductor that is joined to the silicon substrate by Schottky junction, in which the conductor is directly joined to a (111) plane of at least one of a protruding portion or a depressed portion in the uneven structure.
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公开(公告)号:US20210399148A1
公开(公告)日:2021-12-23
申请号:US17463637
申请日:2021-09-01
Inventor: SHINYA OKAMOTO , ATSUSHI ISHIKAWA , YASUHISA INADA
IPC: H01L31/0232 , H01L31/0352 , H01L31/0224
Abstract: An optical device includes a nanostructure body which induces surface plasmon resonance when irradiated with light, an alloy layer which is in contact with the nanostructure body and which has a lower work function than the nanostructure body, and an n-type semiconductor which is in Schottky contact with the alloy layer. The nanostructure body is composed of one selected from the group consisting of elemental metals, alloys, metal nitrides, and conductive oxides. The alloy layer is composed of at least two metals.
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公开(公告)号:US20210391373A1
公开(公告)日:2021-12-16
申请号:US17460398
申请日:2021-08-30
Inventor: SHINYA OKAMOTO , YASUHISA INADA , ATSUSHI ISHIKAWA
IPC: H01L27/146 , H02S10/30 , H01L31/0232 , H01L31/108
Abstract: An optical device includes a nanostructure body which induces surface plasmon resonance when irradiated with light, an oxide layer which is in contact with the nanostructure body, an alloy layer which is in contact with the oxide layer and which is made of an alloy containing a first metal and a second metal that are different in work function from each other, and an n-type semiconductor which is in Schottky contact with the alloy layer.
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公开(公告)号:US20250096516A1
公开(公告)日:2025-03-20
申请号:US18964752
申请日:2024-12-02
Inventor: TASUKU NAKAMURA , SHINYA OKAMOTO , KAZUYA HISADA , YASUHISA INADA , KATSUYA NOZAWA
Abstract: A laser device includes a first optical comb laser, a second optical comb laser having a repetition frequency different from the first optical comb laser, a detection unit that detects interfering light between light output from the first optical comb laser and light output from the second optical comb laser and a control circuit. The control circuit controls at least one of a first CEO frequency, which is a carrier-envelope offset frequency of the first optical comb laser, or a second CEO frequency, which is a carrier-envelope offset frequency of the second optical comb laser, on the basis of output of the detection unit and thus changes a difference frequency, which is a difference between the first CEO frequency and the second CEO frequency.
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公开(公告)号:US20190355862A1
公开(公告)日:2019-11-21
申请号:US16529420
申请日:2019-08-01
Inventor: SHINYA OKAMOTO , SATOSHI YOTSUHASHI , TAKU HIRASAWA
IPC: H01L31/108 , H01L31/07 , H01L31/0224 , C25B11/04 , C25B9/08 , C25B1/10 , C25B1/00 , B82Y30/00
Abstract: An optical device includes an intermetallic compound of a first metal and a second metal having a lower work function than the first metal, or a solid-solution alloy of the first metal and the second metal and includes an n-type semiconductor in Schottky junction with the intermetallic compound or the solid-solution alloy.
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公开(公告)号:US20180142365A1
公开(公告)日:2018-05-24
申请号:US15693475
申请日:2017-09-01
Inventor: SHOKO KUSAMA , SATOSHI YOTSUHASHI , AKIHIRO SAKAI , HIROSHI HASHIBA , SHINYA OKAMOTO , HIROKI SATO , KOSUKE NAKAJIMA
IPC: C25B11/04 , C25B3/04 , C25B9/08 , C07D487/22
CPC classification number: C25B11/0489 , C07B2200/13 , C07D487/22 , C25B3/04 , C25B9/08 , C25B11/0405 , C25B11/0415
Abstract: The present invention provides a method for reducing carbon dioxide electrochemically to generate ethylene selectively. In the present method, a carbon dioxide reduction catalyst comprising a crystalline copper phthalocyanine is used to generate ethylene selectively by reducing carbon dioxide electrochemically on a cathode electrode.
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公开(公告)号:US20170335468A1
公开(公告)日:2017-11-23
申请号:US15413484
申请日:2017-01-24
Inventor: SHINYA OKAMOTO , TAKEYUKI SEKIMOTO , MASAHIRO DEGUCHI , SATOSHI YOTSUHASHI
IPC: C25B1/00 , H01L31/068 , C25B3/04 , H01G9/20 , C25B1/04 , C25B11/04 , H01L31/0693 , H01L31/0224
CPC classification number: C25B1/003 , C25B1/04 , C25B3/04 , C25B11/04 , H01G9/2045 , H01G9/205 , H01L31/022425 , H01L31/0687 , Y02E10/544 , Y02E60/366 , Y02E70/10 , Y02P20/135
Abstract: The present disclosure provides a fuel production method and a fuel production apparatus which efficiently convert solar light energy into a fuel. The fuel production apparatus of the present disclosure includes a laminate, an electrolytic bath, and a support tool or a proton permeable membrane. The laminate includes a photoelectromotive layer having a p-n junction structure, a cathode electrode, an anode electrode and a side surface insulating layer, and the photoelectromotive layer includes a semiconductor layer that absorbs light in a near-infrared region with a wavelength of 900 nm or more. In the fuel production apparatus, an underwater optical path length is set to an optimum design value, so that even light in a near-infrared region with a wavelength of 900 nm or more is sufficiently utilized to efficiently convert light energy into at least one fuel selected from hydrogen, carbon monoxide, formic acid, methane, ethylene, methanol, ethanol, isopropanol, allyl alcohol, acetaldehyde and propionaldehyde through a reduction reaction on the cathode electrode.
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