Patents by Inventor Tetsuya Yamasaki
Tetsuya Yamasaki 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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Patent number: 11504860Abstract: A characteristic estimation system, comprising circuitry configured to, cause a robot hand configured to grip an object to operate based on operation information defining an operation of the robot hand, acquire a physical quantity at a time when the robot hand grips the object, and estimate a characteristic of the object based on the physical quantity.Type: GrantFiled: November 26, 2019Date of Patent: November 22, 2022Assignee: KABUSHIKI KAISHA YASKAWA DENKIInventors: Terumitsu Hayashi, Takeomi Hidaka, Tetsuya Yamasaki
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Publication number: 20200171675Abstract: A characteristic estimation system, comprising circuitry configured to, cause a robot hand configured to grip an object to operate based on operation information defining an operation of the robot hand, acquire a physical quantity at a time when the robot hand grips the object, and estimate a characteristic of the object based on the physical quantity.Type: ApplicationFiled: November 26, 2019Publication date: June 4, 2020Inventors: Terumitsu HAYASHI, Takeomi HIDAKA, Tetsuya YAMASAKI
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Patent number: 8899650Abstract: An adsorbent in a board conveying hand includes: a pad for adsorbing a board in contact with the board; and an elastic member interposed between the fork and the pad and provided with an adsorption passage for allowing an adsorbing fluid to pass between the fork and the pad, wherein a part of the elastic member is deformed, thus arbitrarily varying a projection amount of the pad from the fork.Type: GrantFiled: October 28, 2011Date of Patent: December 2, 2014Assignee: Kabushiki Kaisha Yaskawa DenkiInventors: Makoto Furuta, Toru Nakako, Tetsuya Yamasaki
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Publication number: 20120319415Abstract: A substrate transfer hand for unloading and loading a substrate with respect to a cassette and transferring the substrate, includes: a first driven roller configured to be rotated by a drive mechanism provided in the cassette when the hand is coupled to the cassette along a substrate unloading/loading direction. The substrate transfer hand further includes: a flat support bar configured to be coupled to the cassette; a second driven roller provided in the support bar; and a rotation transmitting unit for transmitting rotation of the first driven roller to the second driven roller such that the second driven roller is rotated in the same direction as the first driven roller.Type: ApplicationFiled: March 1, 2012Publication date: December 20, 2012Applicant: KABUSHIKI KAISHA YASKAWA DENKIInventors: Makoto FURUTA, Toru NAKAKO, Tetsuya YAMASAKI
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Publication number: 20120107081Abstract: An adsorbent in a board conveying hand includes: a pad for adsorbing a board in contact with the board; and an elastic member interposed between the fork and the pad and provided with an adsorption passage for allowing an adsorbing fluid to pass between the fork and the pad, wherein a part of the elastic member is deformed, thus arbitrarily varying a projection amount of the pad from the fork.Type: ApplicationFiled: October 28, 2011Publication date: May 3, 2012Applicant: KABUSHIKI KAISHA YASKAWA DENKIInventors: Makoto FURUTA, Toru Nakako, Tetsuya Yamasaki
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Publication number: 20060202296Abstract: A semiconductor module includes a resin package, a conductive film formed on the resin package, and a lead partially covered by the resin package. The lead includes an inner portion covered by the resin package, and an outer portion projecting from the resin package. A semiconductor element is mounted to the inner portion of the lead. The inner portion of the lead includes a plurality of extensions for grounding, and each of the extensions has a front end held in contact with the conductive film.Type: ApplicationFiled: May 10, 2006Publication date: September 14, 2006Applicant: ROHM CO., LTD.Inventors: Shinji Yano, Naoki Kumura, Tetsuya Yamasaki
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Patent number: 7071523Abstract: A semiconductor module that includes a resin package having a first surface and a second surface which is different from the first surface. A lead includes an inner portion covered by the resin package and an outer portion projecting from the first surface of the resin package. A semiconductor element is mounted to the inner portion of the lead and is covered by the resin package. A conductive film, provided separately from the lead, covers at least the second surface of the resin package, with the conductive film provided with a connecting portion held in contact with the outer portion of the lead at the first surface of the resin package. The inner portion of the lead includes an extension extending toward the second surface of the resin package the extension being held in contact with the conductive film at the second surface of the resin package.Type: GrantFiled: July 27, 2004Date of Patent: July 4, 2006Assignee: Rohm Co., Ltd.Inventors: Shinji Yano, Naoki Kumura, Tetsuya Yamasaki
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Publication number: 20050073018Abstract: A semiconductor module includes a resin package, a conductive film formed on the resin package, and a lead partially covered by the resin package. The lead includes an inner portion covered by the resin package, and an outer portion projecting from the resin package. A semiconductor element is mounted to the inner portion of the lead. The inner portion of the lead includes a plurality of extensions for grounding, and each of the extensions has a front end held in contact with the conductive film.Type: ApplicationFiled: July 27, 2004Publication date: April 7, 2005Applicant: ROHM CO., LTD.Inventors: Shinji Yano, Naoki Kumura, Tetsuya Yamasaki
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Publication number: 20030052544Abstract: A PWM cycloconverter is disclosed that can switch power supplies without interrupting operation in the event of a power supply abnormality. When a power supply abnormality occurs in three-phase AC power supply 1, power supply abnormality detection circuit 30 outputs power supply abnormality detection signal 120, whereby power supply switch 20 selects and outputs the output voltage of uninterruptible power supply 10. Phase detection circuit switch 43 selects and outputs phase information that is output from uninterruptible power supply phase detection circuit 41. Uninterruptible power supply phase detection circuit 41 detects the phase of uninterruptible power supply 10 from before the occurrence of the power supply abnormality, whereby accurate phase information of uninterruptible power supply 10 can be output even immediately after phase detection circuit switch 43 switches the phase information that is output. As a result, operation is not interrupted when switching power supplies.Type: ApplicationFiled: September 5, 2002Publication date: March 20, 2003Inventors: Eiji Yamamoto, Sadao Ishii, Hidenori Hara, Eiji Watanabe, Tetsuya Yamasaki, Koji Tanaka
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Patent number: 5104435Abstract: In a plate microlens of the invention, wherein gradient index lenses each having an optical axis along a normal to a surface of a transparent base and a refractive index profile gradually changing along a direction of the optical axis and a direction perpendicular thereto are formed integrally in the transparent base; a ratio d/a (where d is a thickness of the gradient index lens on the optical axis and 2a is a diameter of the gradient index lens on a surface of the transparent base) falls within a range of 0.46 to 0.78.Type: GrantFiled: November 21, 1990Date of Patent: April 14, 1992Assignee: Nippon Sheet Glass Co., Ltd.Inventors: Masahiro Oikawa, Tetsuya Yamasaki, Kouji Tanaka, Eiji Okuda
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Patent number: 4952037Abstract: In a plate microlens of the invention wherein gradient index lenses each having an optical axis along a normal to a surface of a transparent base and a refractive index profile gradually changing along a direction of the optical axis and a direction perpendicular thereto are formed integrally in the transparent base, a ratio d/a (where d is a thickness of the gradient index lens on the optical axis and 2a is a diameter of the gradient index lens on a surface of the transparent base) falls within a range of 0.46 to 0.78.Type: GrantFiled: February 28, 1989Date of Patent: August 28, 1990Assignee: Nippon Sheet Glass Co., Ltd.Inventors: Masahiro Oikawa, Tetsuya Yamasaki, Kouji Tanaka, Eiji Okuda
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Patent number: 4693544Abstract: An optical waveguide device of the invention has an optical waveguide which is a region formed in a transparent substrate and has a refractive index higher than that of the transparent substrate. The optical waveguide consists of first and second optical waveguide elements each having one end exposed to a surface of the transparent substrate and the other end connected in the vinicity of the surface of the transparent substrate, such that the connecting portion thereof is exposed to the surface of the transparent substrate.Type: GrantFiled: December 6, 1983Date of Patent: September 15, 1987Assignee: Nippon Sheet Glass Co., Ltd.Inventors: Tetsuya Yamasaki, Eiji Okuda
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Patent number: 4637681Abstract: An optical plane circuit has a transparent substrate such as a glass plate and a synthetic resin plate, an optical waveguide, and a graded index type lens to serve as an optical coupler which improves the input and/or output efficiency of a light beam in and/or from the optical waveguide. The optical plane circuit does not require troublesome precision registration between the optical waveguide and the optical coupler, and an overall compact circuit may be achieved. Connection loss due to connection between the optical waveguide and the optical coupler is small. The coupling efficiency is not degraded even if the cross-sectional shape of the optical waveguide expands along the plane of the substrate. Input and/or output of a light beam into and/or from the optical waveguide may be performed with excellent efficiency and reliability. A method for manufacturing this optical plane circuit is also provided.Type: GrantFiled: January 30, 1985Date of Patent: January 20, 1987Assignee: Nippon Sheet Glass Co., Ltd.Inventors: Noboru Yamamoto, Tetsuya Yamasaki
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Patent number: 4600267Abstract: An optical directional coupler of the invention has a first surface which is formed at the one end of a first or second graded index type light transmission body and which is perpendicular to the optical axis of the light transmission body, and also has a plurality of second surfaces which are formed at parts of the one end of the light transmission body which are different from the first surface. The light which is transmitted from a first optical fiber through the first surface is further transmitted through the second light transmission body, and then becomes incident on a second optical fiber. The light which is transmitted from the first optical fiber through the second surfaces is further transmitted through the second light transmission body and then becomes incident on a plurality of third optical fibers.Type: GrantFiled: January 31, 1985Date of Patent: July 15, 1986Assignee: Nippon Sheet Glass Co., Ltd.Inventors: Tetsuya Yamasaki, Takashi Kishimoto, Ichirou Yamauchi
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Patent number: 4509824Abstract: A plate lens comprising a transparent base having two flat surfaces and having a plano-convex lens portion which is formed integrally with the transparent base, which has a refractive index greater than that of the transparent base and which has a substantially semicircular or circular section in a direction perpendicular to the flat surfaces of the transparent base. The plate lens has a light-shielding layer on one surface of the transparent base, as needed. The light-shielding layer covers one surface of the transparent base such that a transparent portion may be formed in the vicinity of a position opposing the central point or line of the plano-convex lens portion. The plate lens provides a clear and bright image and is therefore applicable to faceplates for various types of display devices, CRTs and the like. The plate lens may be mass-produced at low cost.Type: GrantFiled: January 31, 1983Date of Patent: April 9, 1985Assignee: Nippon Sheet Glass Co., Ltd.Inventors: Tetsuya Yamasaki, Eiji Okuda, Noboru Yamamoto
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Patent number: D366665Type: GrantFiled: October 20, 1993Date of Patent: January 30, 1996Assignees: Ricoh Company, Ltd., Mitsumi Electric Co., Ltd.Inventors: Hiroshi Morohoshi, Tetsuya Yamasaki
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Patent number: D374450Type: GrantFiled: June 7, 1995Date of Patent: October 8, 1996Assignees: Ricoh Company, Ltd., Mitsumi Electric Co., Ltd.Inventors: Hiroshi Morohoshi, Tetsuya Yamasaki