Patents by Inventor Takahiro Matsubara
Takahiro Matsubara 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: 20130008184Abstract: A disclosed displacer to be inserted into a cylinder to expand a compressed working fluid inside the cylinder by reciprocation of the displacer inside the cylinder includes a cylindrical member; and a regenerative material included inside the cylindrical member, wherein a groove is formed on an outer peripheral surface of the cylindrical member, the outer peripheral surface facing the cylinder, and a sealing film is continuously formed on the outer peripheral surface and the groove over an area where the groove is formed in a longitudinal direction.Type: ApplicationFiled: September 14, 2012Publication date: January 10, 2013Applicant: SUMITOMO HEAVY INDUSTRIES, LTD.Inventors: Takahiro MATSUBARA, Jyunya Hamasaki
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Publication number: 20120317994Abstract: A disclosed regenerative type refrigerator includes a cylinder expanding a refrigerant gas; a regenerator accumulating cold thermal energy and being provided inside the cylinder so as to be reciprocate inside the cylinder; a rotary drive portion generating driving force; a rotary member being rotated by the rotary drive portion; and a bearing member supporting the rotary member and including an inner wheel, an outer wheel, and two sealing members encapsulating a lubricant agent and being provided on sides of the outer wheel and the inner wheel, wherein the sealing members are fixed to one of the inner wheel member and the outer wheel member, and a gap is formed between the two sealing members and another one of the inner wheel member and the outer wheel member.Type: ApplicationFiled: June 12, 2012Publication date: December 20, 2012Applicant: SUMITOMO HEAVY INDUSTRIES, LTD.Inventor: Takahiro MATSUBARA
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Publication number: 20120247143Abstract: A regenerative refrigerator includes a cylinder, a regenerator containing a regenerator material, and a partitioning member provided in the regenerator and partitioning off the regenerator material. The partitioning member includes a ring member having a center opening and having an outer circumferential surface fitting with the inner circumferential surface of the regenerator, and a layered body provided on the ring member to close its center opening. The layered body includes a filter member and a reinforcing member stacked in multiple layers. The filter member is configured to prevent passage of the regenerator material and to allow passage of a refrigerant gas. The reinforcing member is configured to reinforce the filter member. The layered body has a peripheral edge portion held tight from the first and second opposite sides of the layered body in its stacking direction by the ring member.Type: ApplicationFiled: March 26, 2012Publication date: October 4, 2012Applicant: SUMITOMO HEAVY INDUSTRIES, LTD.Inventor: Takahiro MATSUBARA
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Optical transmission substrate, method for fabricating the same, and optoelectronic hybrid substrate
Patent number: 7986862Abstract: An optical transmission substrate includes an optical transmission body provided in a through hole which has excellent and uniform propagation characteristics. The optical transmission substrate includes: a substrate 1 formed by laminating a plurality of dielectric sheets 10; and a plurality of cylindrical refractive-index distribution bodies 11, each of which is made of a photosensitive polymeric material formed in a through hole 10a penetrating each of the dielectric sheets, each of the refractive-index distribution body including a truncated conical core 12 and a periphery. Each of the cores 12 has a higher refractive index in the radial direction than the periphery and has a large-diameter end face and a small-diameter end face. The cores of refractive-index distribution bodies have a first core and a second core in the two adjoining dielectric sheet, and, the large-diameter end face of the first core and the small-diameter end face of the second core face each other and optically couple together.Type: GrantFiled: March 30, 2007Date of Patent: July 26, 2011Assignee: Kyocera CorporationInventors: Takahiro Matsubara, Yuuji Kishida -
Publication number: 20110019960Abstract: An integrated optical transmission board in accordance with one embodiment of the invention includes: a first optical transmission board having a first optical transmission line; a second optical transmission board having a second optical transmission line; and an optical coupling structure which is disposed between the first optical transmission board and the second optical transmission board and has a third optical transmission line for providing optical connection between the first optical transmission line and the second optical transmission line. The first optical transmission board further has a first engagement portion provided in an area thereof opposed to the optical coupling structure. The optical coupling structure further has a second engagement portion provided in an area thereof opposed to the first optical transmission board so as to make engagement with the first engagement portion.Type: ApplicationFiled: March 27, 2009Publication date: January 27, 2011Applicant: KYOCERA CORPORATIONInventors: Takahiro Matsubara, Keiko Oda
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Optical Transmission Substrate, Method for Fabricating the Same, and Optoelectronic Hybrid Substrate
Publication number: 20090310904Abstract: An optical transmission substrate includes an optical transmission body provided in a through hole which has excellent and uniform propagation characteristics. The optical transmission substrate includes: a substrate 1 formed by laminating a plurality of dielectric sheets 10; and a plurality of cylindrical refractive-index distribution bodies 11, each of which is made of a photosensitive polymeric material formed in a through hole 10a penetrating each of the dielectric sheets, each of the refractive-index distribution body including a truncated conical core 12 and a periphery. Each of the cores 12 has a higher refractive index in the radial direction than the periphery and has a large-diameter end face and a small-diameter end face. The cores of refractive-index distribution bodies have a first core and a second core in the two adjoining dielectric sheet, and, the large-diameter end face of the first core and the small-diameter end face of the second core face each other and optically couple together.Type: ApplicationFiled: March 30, 2007Publication date: December 17, 2009Applicant: KYOCERA CORPORATIONInventors: Takahiro Matsubara, Yuuji Kishida -
Publication number: 20090304323Abstract: To provide an optical coupling structure that can transmit signal light efficiently and change the light paths, and thereby increase the coupling efficiency of the optical coupling between an optical semiconductor device and optical waveguides. An optical coupling structure is disclosed that includes optical waveguides optically coupled with an optical path converting surface that is arranged in substrates and an optical semiconductor device mounted on the upper substrate with its active region facing the optical path converting surface, which are optically coupled, via cylindrical refraction index distributors formed of a photosensitive polymer material, arranged so as to go through the portion between the active region of the optical semiconductor device and the optical path converting surface.Type: ApplicationFiled: April 24, 2006Publication date: December 10, 2009Inventor: Takahiro Matsubara
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Publication number: 20090165469Abstract: A cryopump includes: a cryopump chamber having an inlet port through which a gas to be pumped is introduced; a refrigerator provided with a second cooling stage provided in the cryopump chamber; an intermediate member thermally coupled to the second cooling stage; and a cryopanel having a connecting part connected to the intermediate member at a position farther from the inlet port in the direction in which the gas is introduced than the second cooling stage, and extending from the connecting part toward the inlet port. For example, a cryopump having a suspended panel structure is provided.Type: ApplicationFiled: October 17, 2008Publication date: July 2, 2009Applicant: SUMITOMO HEAVY INDUSTRIES, LTD.Inventor: Takahiro Matsubara
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Patent number: 7515803Abstract: A photoinduced refractive-index changing region is formed by irradiating while focusing a single beam of pulse laser light having an energy amount to cause a photoinduced change in refractive index onto a light guide of an optical element such as a lens, a mirror, a diffraction grating, a polarizer, or a wavelength filter. In the photoinduced refractive-index changing region, since the refractive index is periodically changed in one direction, of the light propagating through the optical element, only a polarized light penetrates through this photoinduced refractive-index changing region. Accordingly, the photoinduced refractive-index changing region can be functioned as a polarizer.Type: GrantFiled: June 18, 2007Date of Patent: April 7, 2009Assignees: Kyocera CorporationInventors: Kazuyuki Hirao, Yasuhiko Shimotsuma, Takahiro Matsubara, Jianrong Qiu
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Publication number: 20070237446Abstract: A photoinduced refractive-index changing region is formed by irradiating while focusing a single beam of pulse laser light having an energy amount to cause a photoinduced change in refractive index onto a light guide of an optical element such as a lens, a mirror, a diffraction grating, a polarizer, or a wavelength filter. In the photoinduced refractive-index changing region, since the refractive index is periodically changed in one direction, of the light propagating through the optical element, only a polarized light penetrates through this photoinduced refractive-index changing region. Accordingly, the photoinduced refractive-index changing region can be functioned as a polarizer.Type: ApplicationFiled: June 18, 2007Publication date: October 11, 2007Applicants: KYOCERA CORPORATIONInventors: Kazuyuki HIRAO, Yasuhiko SHIMOTSUMA, Takahiro MATSUBARA, Jianrong QIU
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Publication number: 20050244123Abstract: A photoinduced refractive-index changing region is formed by irradiating while focusing a single beam of pulse laser light having an energy amount to cause a photoinduced change in refractive index onto a light guide of an optical element such as a lens, a mirror, a diffraction grating, a polarizer, or a wavelength filter. In the photoinduced refractive-index changing region, since the refractive index is periodically changed in one direction, of the light propagating through the optical element, only a polarized light penetrates through this photoinduced refractive-index changing region. Accordingly, the photoinduced refractive-index changing region can be functioned as a polarizer.Type: ApplicationFiled: March 31, 2005Publication date: November 3, 2005Inventors: Kazuyuki Hirao, Yasuhiko Shimotsuma, Takahiro Matsubara, Jianrong Qiu
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Patent number: 6112001Abstract: An optical coupler wherein on one principal face of an Si single crystal substrate are formed, by etching, grooves for mounting optical fibers and a portion for mounting an optical element that is divided into plural parts, a base substrate, of which coefficient of thermal expansion is substantially identical to that of the optical element, is bonded onto the other principal face of the substrate, and the optical element is mounted on the portion for mounting an optical element.Type: GrantFiled: July 29, 1998Date of Patent: August 29, 2000Assignee: Kyocera CorporationInventors: Yuji Kishida, Ryuji Komeda, Yutaka Kuba, Takahiro Matsubara
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Patent number: 5827586Abstract: A packaging container for chemicals such as pesticides and the like and a laminated film for forming said container, wherein the inner layer of the laminated film is constituted of an inner bag made of a water-soluble polymer film and the outer layer of the laminated film is constituted of an outer bag made of a water-insoluble film, and at least in the seal part of the container, films constituting inner layer are bonded to each other and additionally the film constituting inner layer and the film constituting outer layer are bonded to each other, and the film constituting inner layer and the film constituting outer layer are releasable from each other.Type: GrantFiled: December 13, 1996Date of Patent: October 27, 1998Assignee: Ciba-Geigy Japan LimitedInventors: Ryo Yamashita, Kenichi Kitagaki, Takahiro Matsubara, Mikio Takenaka
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Patent number: 5303458Abstract: In summary, therefore, this invention is directed to a thermal growth detector and compensator for detecting and compensating for relative movement between a work holder of a machine tool and a tool holder, that includes an elongated rod made of a material having a coefficient of thermal expansion of substantially zero that is attached at one end thereof to a part of a machine tool, and is attached at another end thereof to a part of a work holder on the machine tool.Type: GrantFiled: March 31, 1992Date of Patent: April 19, 1994Assignee: Hardinge Brothers, Inc.Inventors: Terrence M. Sheehan, Daniel P. Soroka, Takahiro Matsubara, Raymond C. Cady, Gregory Ayzenshtok, Gary L. Comstock
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Patent number: 5189716Abstract: A photosemiconductor module such as a laser diode module or a photodiode module is optically coupled to an optical fiber. The photosemiconductor module includes a holder assembly with a photosemiconductor and a lens being fixedly mounted therein coaxially along an optical axis. An optical connector is joined to the holder assembly and has a hollow receptacle to be connected to the optical fiber and a joint press-fitted in the receptacle and joined coaxially to the holder assembly by lap laser beam welding.Type: GrantFiled: March 6, 1992Date of Patent: February 23, 1993Assignee: Nippon Sheet Glass Co., Ltd.Inventors: Takahiro Matsubara, Yoshio Makita, Koichiro Iwao
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Patent number: 5119462Abstract: A photosemiconductor module such as a laser diode module or a photodiode module is optically coupled to an optical fiber. The photosemiconductor module includes a holder assembly with a photosemiconductor and a lens being fixedly mounted therein coaxially along an optical axis. An optical connector is joined to the holder assembly and has a hollow receptacle to be connected to the optical fiber and a joint press-fitted in the receptacle and joined coaxially to the holder assembly by lap laser beam welding.Type: GrantFiled: January 29, 1991Date of Patent: June 2, 1992Assignee: 501 Nippon Sheet Glass Co., Ltd.Inventors: Takahiro Matsubara, Yoshio Makita, Koichiro Iwao