Patents by Inventor Ryosuke Okumura
Ryosuke Okumura has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20220085095Abstract: A method for manufacturing a light detection device includes a first process of preparing a semiconductor wafer having a first main surface and a second main surface, a second process of providing a first support substrate on the first main surface, a third process of cutting the semiconductor wafer and the first support substrate in a state where the first support substrate is provided on the first main surface, and obtaining a light receiving element in a state where a support member is provided on a first surface, a fourth process of, by using a plurality of connection members arranged between a second surface and a mounting surface of a circuit structure, electrically and physically connecting the light receiving element and the circuit structure in a state where the support member is provided on the first surface, and a fifth process of removing the support member from the first surface.Type: ApplicationFiled: February 25, 2020Publication date: March 17, 2022Applicant: HAMAMATSU PHOTONICS K.K.Inventors: Ryosuke OKUMURA, Yuki YOSHIDA, Yoshinori TSUKADA
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Patent number: 10670461Abstract: An optical interferometer includes a branching-combining unit, a first optical system, a second optical system, and a drive unit. The branching-combining unit includes a branching surface, an incident surface, a first output surface, a combining surface, and a second output surface on an interface of a transparent member, the branching surface partially reflects incident light and outputs as first branched light, and transmits the rest of the incident light into the interior as second branched light, the combining surface partially combines the first branched light and the second branched light to be output to the outside as first combined light, and combines the rest of the first branched light and the second branched light to be propagated into the interior as second combined light, and the second output surface partially outputs the second combined light to the outside.Type: GrantFiled: September 3, 2015Date of Patent: June 2, 2020Assignee: HAMAMATSU PHOTONICS K.K.Inventors: Yoshihisa Warashina, Tomofumi Suzuki, Kohei Kasamori, Ryosuke Okumura, Kyosuke Kotani
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Patent number: 10422696Abstract: An optical module includes an actuator that includes a movable part to be moved along a predetermined direction; a first interference optical system that includes a first movable mirror, a first stationary mirror, and a first beam splitter; and a second interference optical system that includes a second movable mirror, a second stationary mirror, and a second beam splitter. The first interference optical system is adapted so that first light reciprocates m times (m is a natural number) between the first beam splitter and the first movable mirror along the predetermined direction. The second interference optical system is adapted so that second light reciprocates n times (n is a natural number greater than m) between the second beam splitter and the second movable mirror along the predetermined direction.Type: GrantFiled: February 2, 2017Date of Patent: September 24, 2019Assignee: HAMAMATSU PHOTONICS K.K.Inventors: Yoshihisa Warashina, Tomofumi Suzuki, Kohei Kasamori, Ryosuke Okumura, Kyosuke Kotani
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Publication number: 20190033136Abstract: An optical module includes an actuator that includes a movable part to be moved along a predetermined direction; a first interference optical system that includes a first movable mirror, a first stationary mirror, and a first beam splitter; and a second interference optical system that includes a second movable mirror, a second stationary mirror, and a second beam splitter. The first interference optical system is adapted so that first light reciprocates m times (m is a natural number) between the first beam splitter and the first movable mirror along the predetermined direction. The second interference optical system is adapted so that second light reciprocates n times (n is a natural number greater than m) between the second beam splitter and the second movable mirror along the predetermined direction.Type: ApplicationFiled: February 2, 2017Publication date: January 31, 2019Applicant: HAMAMATSU PHOTONICS K.K.Inventors: Yoshihisa WARASHINA, Tomofumi SUZUKI, Kohei KASAMORI, Ryosuke OKUMURA, Kyosuke KOTANI
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Publication number: 20180217001Abstract: An optical interferometer includes a branching-combining unit, a first optical system, a second optical system, and a drive unit. The branching-combining unit includes a branching surface, an incident surface, a first output surface, a combining surface, and a second output surface on an interface of a transparent member, the branching surface partially reflects incident light and outputs as first branched light, and transmits the rest of the incident light into the interior as second branched light, the combining surface partially combines the first branched light and the second branched light to be output to the outside as first combined light, and combines the rest of the first branched light and the second branched light to be propagated into the interior as second combined light, and the second output surface partially outputs the second combined light to the outside.Type: ApplicationFiled: September 3, 2015Publication date: August 2, 2018Applicant: HAMAMATSU PHOTONICS K.K.Inventors: Yoshihisa WARASHINA, Tomofumi SUZUKI, Kohei KASAMORI, Ryosuke OKUMURA, Kyosuke KOTANI
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Publication number: 20180195853Abstract: An optical interferometer includes a branching-combining unit, a first optical system, a second optical system, and a drive unit, which can be MEMS-based components. The branching-combining unit includes a branching surface, an incident surface, an output surface, and a combining surface on an interface between the interior and the exterior of a transparent member. The branching-combining unit, on the branching surface, partially reflects incident light and outputs as first branched light, and transmits the rest of the incident light into the interior as second branched light. The branching-combining unit, on the combining surface, outputs the first branched light to the outside, reflects the second branched light, and combines the light beams to be output to the outside as combined light.Type: ApplicationFiled: July 10, 2015Publication date: July 12, 2018Applicant: HAMAMATSU PHOTONICS K.K.Inventors: Yoshihisa WARASHINA, Tomofumi SUZUKI, Kohei KASAMORI, Ryosuke OKUMURA, Kyosuke KOTANI
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Patent number: 9464758Abstract: A second protective member (62) is provided to cover a thin wall portion and its periphery of a second tank head section (92), so as to protect the thin wall portion. The thin wall portion is a region of the second tank head section (92) in which a reinforcing layer (20) has a smaller wall thickness. The second protective member (62) has a double layer structure including an inner layer made of polyurethane and an outer layer made of a material mixture of polyurethane and expanded graphite. This structure suppresses the mass and the volume of a pressure vessel from being increased by the presence of a protective layer.Type: GrantFiled: September 26, 2013Date of Patent: October 11, 2016Assignee: Toyota Jidosha Kabushiki KaishaInventors: Makoto Kojima, Kentaro Hioki, Shusuke Inagi, Ryosuke Okumura
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Publication number: 20150204483Abstract: A second protective member (62) is provided to cover a thin wall portion and its periphery of a second tank head section (92), so as to protect the thin wall portion. The thin wall portion is a region of the second tank head section (92) in which a reinforcing layer (20) has a smaller wall thickness. The second protective member (62) has a double layer structure including an inner layer made of polyurethane and an outer layer made of a material mixture of polyurethane and expanded graphite. This structure suppresses the mass and the volume of a pressure vessel from being increased by the presence of a protective layer.Type: ApplicationFiled: September 26, 2013Publication date: July 23, 2015Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Makoto Kojima, Kentaro Hioki, Shusuke Inagi, Ryosuke Okumura