Patents by Inventor Takanori Fukuyama
Takanori Fukuyama 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: 20240027817Abstract: A light modulation device having a pixel arrangement region in which a plurality of pixels are arranged includes a first substrate, a second substrate disposed to be opposed to the first substrate via a liquid crystal layer, and a cooling member disposed on the opposite side of the first substrate with respect to the second substrate and thermally connected to the second substrate. The cooling member includes a hollow space in which working fluid is encapsulated and changes the working fluid in a liquid phase to the working fluid in a gas phase to cool the liquid crystal layer via the second substrate.Type: ApplicationFiled: October 5, 2023Publication date: January 25, 2024Applicant: SEIKO EPSON CORPORATIONInventors: Norikazu KADOTANI, Takanori FUKUYAMA, Katsunori TANAKA, Minoru MORIWAKI, Suguru UCHIYAMA
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Patent number: 11846868Abstract: A projection apparatus (projector) includes a light source apparatus, an image generation unit that generates image light from the light from the light source apparatus, a projection optical system that projects the image light, a reflective optical element (reflection mirror) that forms the projection optical system, deflects back the image light, and causes the deflected image light to exit, a projection optics enclosure that accommodates the projection optical system, and a first opening section formed in the projection optics enclosure so as to open in the position of the reflective optical element (reflection mirror).Type: GrantFiled: October 28, 2021Date of Patent: December 19, 2023Assignee: SEIKO EPSON CORPORATIONInventors: Nobuyuki Otsuki, Naoto Takehana, Takanori Fukuyama
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Patent number: 11829019Abstract: A light modulation device having a pixel arrangement region in which a plurality of pixels are arranged includes a first substrate, a second substrate disposed to be opposed to the first substrate via a liquid crystal layer, and a cooling member disposed on the opposite side of the first substrate with respect to the second substrate and thermally connected to the second substrate. The cooling member includes a hollow space in which working fluid is encapsulated and changes the working fluid in a liquid phase to the working fluid in a gas phase to cool the liquid crystal layer via the second substrate.Type: GrantFiled: March 28, 2022Date of Patent: November 28, 2023Assignee: SEIKO EPSON CORPORATIONInventors: Norikazu Kadotani, Takanori Fukuyama, Katsunori Tanaka, Minoru Moriwaki, Suguru Uchiyama
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Patent number: 11460757Abstract: A projector according to the present disclosure includes a light source device, a plurality of light modulation devices, a combining prism, a support member, and a projection optical system. A first light modulation device includes a first light modulation panel having a first incident side substrate, a first exit side substrate, and a liquid crystal layer, a frame body which has a first opening part, and surrounds a side surface of the first incident side substrate and a side surface of the first exit side substrate, a second incident side substrate opposed to the first incident side substrate in the first opening part, an incident side member fixed to the second incident side substrate and the frame body, a support target member supported by the support member, and a holding member which is made elastically deformable.Type: GrantFiled: August 21, 2020Date of Patent: October 4, 2022Inventors: Tomoaki Miyashita, Toshizo Nishi, Takanori Fukuyama, Kazunari Sakamoto, Suguru Uchiyama
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Publication number: 20220308429Abstract: A projection optical device includes an incident side optical path on which image light is made incident from a image generation device, a bending member configured to bend the image light having passed through the incident side optical path, an emission side optical path on which the image light bent by the bending member is made incident, the emission side optical path being disposed side by side with the light source device, and a reflection element provided on the emission side optical path and configured to reflect the image light made incident thereon and project the image light to the outside of the exterior housing. The absolute value of f2/f1 satisfies the following expression when a focal length of the projection optical device is represented as f1 and a focal length of the reflection element is represented as f2.Type: ApplicationFiled: March 25, 2022Publication date: September 29, 2022Applicant: SEIKO EPSON CORPORATIONInventors: Nobuyuki OTSUKI, Hitoshi HIRANO, Takanori FUKUYAMA
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Publication number: 20220308385Abstract: A light modulation device having a pixel arrangement region in which a plurality of pixels are arranged includes a first substrate, a second substrate disposed to be opposed to the first substrate via a liquid crystal layer, and a cooling member disposed on the opposite side of the first substrate with respect to the second substrate and thermally connected to the second substrate. The cooling member includes a hollow space in which working fluid is encapsulated and changes the working fluid in a liquid phase to the working fluid in a gas phase to cool the liquid crystal layer via the second substrate.Type: ApplicationFiled: March 28, 2022Publication date: September 29, 2022Applicant: SEIKO EPSON CORPORATIONInventors: Norikazu KADOTANI, Takanori FUKUYAMA, Katsunori TANAKA, Minoru MORIWAKI, Suguru UCHIYAMA
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Publication number: 20220137498Abstract: A projection apparatus (projector) includes a light source apparatus, an image generation unit that generates image light from the light from the light source apparatus, a projection optical system that projects the image light, a reflective optical element (reflection mirror) that forms the projection optical system, deflects back the image light, and causes the deflected image light to exit, a projection optics enclosure that accommodates the projection optical system, and a first opening section formed in the projection optics enclosure so as to open in the position of the reflective optical element (reflection mirror).Type: ApplicationFiled: October 28, 2021Publication date: May 5, 2022Inventors: Nobuyuki OTSUKI, Naoto TAKEHANA, Takanori FUKUYAMA
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Publication number: 20210055640Abstract: A projector according to the present disclosure includes a light source device, a plurality of light modulation devices, a combining prism, a support member, and a projection optical system. A first light modulation device includes a first light modulation panel having a first incident side substrate, a first exit side substrate, and a liquid crystal layer, a frame body which has a first opening part, and surrounds a side surface of the first incident side substrate and a side surface of the first exit side substrate, a second incident side substrate opposed to the first incident side substrate in the first opening part, an incident side member fixed to the second incident side substrate and the frame body, a support target member supported by the support member, and a holding member which is made elastically deformable.Type: ApplicationFiled: August 21, 2020Publication date: February 25, 2021Inventors: Tomoaki MIYASHITA, Toshizo NISHI, Takanori FUKUYAMA, Kazunari SAKAMOTO, Suguru UCHIYAMA
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Patent number: 10754231Abstract: In a projector, a first fixation section and a second fixation section are formed at two places located at a distance in an optical axis direction in a lens barrel of a projection optical system. A holding member has contact with the first fixation section from an optical axis direction-rear side, and is fixed, an optical component housing of an illumination light guide optical system has contact with the holding member from the optical axis direction-rear side, and is fixed. A light modulating/combining optical system for generating image light has contact with the second fixation section from the optical axis direction-rear side and is fixed. In other words, the light modulating/combining optical system is directly fixed to the lens barrel without the intervention of the holding member for fixing the illumination light guide optical system to the lens barrel.Type: GrantFiled: August 23, 2018Date of Patent: August 25, 2020Assignee: SEIKO EPSON CORPORATIONInventors: Takanori Fukuyama, Koji Shiokawa, Nobuyuki Otsuki
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Publication number: 20190064641Abstract: In a projector, a first fixation section and a second fixation section are formed at two places located at a distance in an optical axis direction in a lens barrel of a projection optical system. A holding member has contact with the first fixation section from an optical axis direction-rear side, and is fixed, an optical component housing of an illumination light guide optical system has contact with the holding member from the optical axis direction-rear side, and is fixed. A light modulating/combining optical system for generating image light has contact with the second fixation section from the optical axis direction-rear side and is fixed. In other words, the light modulating/combining optical system is directly fixed to the lens barrel without the intervention of the holding member for fixing the illumination light guide optical system to the lens barrel.Type: ApplicationFiled: August 23, 2018Publication date: February 28, 2019Applicant: SEIKO EPSON CORPORATIONInventors: Takanori FUKUYAMA, Koji SHIOKAWA, Nobuyuki OTSUKI
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Patent number: 10038882Abstract: A projector and a method of controlling the projector that may give information on suitability of a light source. A projector includes light sources, light modulators (liquid crystal panels) that modulate lights output from the light sources, a projection optical device that projects the lights modulated by the light modulators, a determination unit that determines whether or not a light source unadapted to a mounting position of the projector is attached, and an informing unit (display control unit) that, if a determination that the light source unadapted to the mounting position of the projector is attached is made by the determination unit, gives information in response to a determination result.Type: GrantFiled: February 27, 2015Date of Patent: July 31, 2018Assignee: SEIKO EPSON CORPORATIONInventors: Takanori Fukuyama, Hiroshi Nara, Kazunori Maeta, Kaname Nagatani
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Projector having holding unit for light modulating device and supporting member for the holding unit
Patent number: 9618755Abstract: A projector has plural liquid crystal light valves each of which modulates color light, a cross dichroic prism which combines the color lights modulated by the plural liquid crystal light valves, and a projection lens which projects the light combined by the cross dichroic prism. The projector includes: a holding unit which holds the liquid crystal light valve; and a supporting member having a body unit supported to the cross dichroic prism and first plate-like portions which protrude from the body unit and support the holding unit. The first plate-like portions are inclined from a vertical plane including an optical axis of the liquid crystal light valve.Type: GrantFiled: June 26, 2012Date of Patent: April 11, 2017Assignee: Seiko Epson CorporationInventors: Masato Kadotani, Takanori Fukuyama, Kosuke Yoshinaga -
Patent number: 9599886Abstract: A polarizer unit that polarizes light incident thereon and causes the polarized light to exit includes an inorganic polarizer (light-exiting-side polarizer) that polarizes the incident light, a transparent substrate that is disposed in contact with the light-exiting-side polarizer and allows the light having exited out of the light-exiting-side polarizer to pass and exit, and a holding member that presses the light-exiting-side polarizer and the transparent substrate from opposite sides to sandwich and hold the light-exiting-side polarizer and the transparent substrate.Type: GrantFiled: March 23, 2015Date of Patent: March 21, 2017Assignee: Seiko Epson CorporationInventors: Takuro Nagatsu, Kentaro Nakamura, Takanori Fukuyama
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Publication number: 20170019649Abstract: A projector and a method of controlling the projector that may give information on suitability of a light source. A projector includes light sources, light modulators (liquid crystal panels) that modulate lights output from the light sources, a projection optical device that projects the lights modulated by the light modulators, a determination unit that determines whether or not a light source unadapted to a mounting position of the projector is attached, and an informing unit (display control unit) that, if a determination that the light source unadapted to the mounting position of the projector is attached is made by the determination unit, gives information in response to a determination result.Type: ApplicationFiled: February 27, 2015Publication date: January 19, 2017Applicant: SEIKO EPSON CORPORATIONInventors: Takanori FUKUYAMA, Hiroshi NARA, Kazunori MAETA, Kaname NAGATANI
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Publication number: 20150277218Abstract: A polarizer unit that polarizes light incident thereon and causes the polarized light to exit includes an inorganic polarizer (light-exiting-side polarizer) that polarizes the incident light, a transparent substrate that is disposed in contact with the light-exiting-side polarizer and allows the light having exited out of the light-exiting-side polarizer to pass and exit, and a holding member that presses the light-exiting-side polarizer and the transparent substrate from opposite sides to sandwich and hold the light-exiting-side polarizer and the transparent substrate.Type: ApplicationFiled: March 23, 2015Publication date: October 1, 2015Inventors: Takuro Nagatsu, Kentaro Nakamura, Takanori Fukuyama
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Publication number: 20130002971Abstract: A projector has plural liquid crystal light valves each of which modulates color light, a cross dichroic prism which combines the color lights modulated by the plural liquid crystal light valves, and a projection lens which projects the light combined by the cross dichroic prism. The projector includes: a holding unit which holds the liquid crystal light valve; and a supporting member having a body unit supported to the cross dichroic prism and first plate-like portions which protrude from the body unit and support the holding unit. The first plate-like portions are inclined from a vertical plane including an optical axis of the liquid crystal light valve.Type: ApplicationFiled: June 26, 2012Publication date: January 3, 2013Applicant: Seiko Epson CorporationInventors: Masato Kadotani, Takanori Fukuyama, Kosuke Yoshinaga
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Patent number: 8335338Abstract: The present invention relates to a loudspeaker in the acoustic field and the information communication field. The invention provides a loudspeaker that can realize a thinner size. To achieve this, the loudspeaker of the present invention is structured so that a part of a diaphragm is inserted to a dent or an opening formed at the center poles of a lower plate of a magnetic circuit. This structure allows the diaphragm to be stored within the height of the magnetic circuit, thus allowing the loudspeaker to have a thinner size.Type: GrantFiled: January 18, 2012Date of Patent: December 18, 2012Assignee: Panasonic CorporationInventors: Kouzi Sano, Masahide Sumiyama, Takanori Fukuyama, Takeshi Shimokawatoko, Kazutaka Kubo, Satoshi Itoh, Kazuki Honda
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Publication number: 20120114166Abstract: The present invention relates to a loudspeaker in the acoustic field and the information communication field. The invention provides a loudspeaker that can realize a thinner size. To achieve this, the loudspeaker of the present invention is structured so that a part of a diaphragm is inserted to a dent or an opening formed at the center poles of a lower plate of a magnetic circuit. This structure allows the diaphragm to be stored within the height of the magnetic circuit, thus allowing the loudspeaker to have a thinner size.Type: ApplicationFiled: January 18, 2012Publication date: May 10, 2012Applicant: PANASONIC CORPORATIONInventors: Kouzi Sano, Masahide Sumiyama, Takanori Fukuyama, Takeshi Shimokawatoko, Kazutaka Kubo, Satoshi Itoh, Kazuki Honda
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Patent number: 8023685Abstract: An electroacoustic transducer has a magnetic circuit, a frame combined with the magnetic circuit, a diaphragm combined with a periphery of the frame, a voice coil, a terminal, and a holder covering the frame. The voice coil is combined with the diaphragm and a part of the voice coil is arranged in a magnetic gap of the magnetic circuit. The terminal, made of a metal plate having spring property and electric conductivity, electrically connects an outside circuit and the voice coil utilizing spring pressure generated when the metal plate is bent. The holder forms a stopper for restricting a bend of the metal plate forming the terminal to within a reversible limit of a metallic material.Type: GrantFiled: June 17, 2005Date of Patent: September 20, 2011Assignee: Panasonic CorporationInventors: Kazuki Honda, Takanori Fukuyama, Koji Sano, Hiroshi Yano, Takeshi Shimokawatoko, Kazuya Yamasaki, Kazutaka Kubo, Masahide Sumiyama
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Patent number: 7877856Abstract: An edge (29) for supporting a diaphragm assembly (100) with respect to a frame (26) is bonded to the frame (26) along the outer periphery thereof and joined to a diaphragm (27) in a position more peripherally inward than a voice coil (28) along the inner periphery thereof. The edge (29) partly overlaps diaphragm (27). This structure allows downsizing of the speaker, without reducing the sizes of a permanent magnet (21) and the edge (29).Type: GrantFiled: May 12, 2009Date of Patent: February 1, 2011Assignee: Panasonic CorporationInventors: Takanori Fukuyama, Tomoyasu Takase, Koji Sano, Hiroshi Yano, Masanori Nakano, Shigeru Tomoeda, Kazuki Honda, Kazuya Yamasaki, Kazutaka Kubo, Takeshi Shimokawatoko, Mitsutaka Enomoto, Masahide Sumiyama