Patents by Inventor Tatsuya Okuno
Tatsuya Okuno 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: 10355175Abstract: A light emitting device 1 includes: a substrate 30; and a phosphor layer 40 composed in such a manner that a large number of phosphor particles 60 are adhered onto a flat surface 32 of the substrate 30. At least one of the phosphor particles 60 is a polyhedral phosphor particle 65 that is monodispersed, is derived from a crystal structure of garnet and has facets, and a median particle size D50 of the polyhedral phosphor particle 65 is 30 ?m or more and a maximum thickness of the phosphor layer 40 or less. It is preferable that at least one of the phosphor particles 60 adhered onto the flat surface 32 of the substrate 30 is the polyhedral phosphor particle 65 that is monodispersed, is derived from the crystal structure of the garnet, and has the facets.Type: GrantFiled: January 31, 2017Date of Patent: July 16, 2019Assignee: Panasonic Intellectual Property Management Co., Ltd.Inventors: Youshin Lee, Shozo Oshio, Tatsuya Okuno, Takeshi Abe, Masahiro Nakamura
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Publication number: 20190169494Abstract: A wavelength conversion member includes: a substrate; and a wavelength converter that converts color of incident light, the wavelength converter being provided on a surface of the substrate. The wavelength converter has: inorganic phosphor particles which convert the color of the incident light; and a binder layer that fixes the inorganic phosphor particle to one another, the binder layer including at least one type of metal oxides with a melting point of 800° C. or less. The substrate and the wavelength converter are fixed to each other by the binder layer of the wavelength converter.Type: ApplicationFiled: April 10, 2017Publication date: June 6, 2019Inventors: Masahiro NAKAMURA, Tatsuya OKUNO, Youshin LEE
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Patent number: 10189937Abstract: This invention relates to a fine powder-coated amine comprising a solid amine having a melting point equal to or higher than 50° C. and a mean particle size equal to or smaller than 20 ?m. The fine powder-coated amine has an amount of heat in the second absorption peak measured by a differential scanning calorimeter equal to or less than 220 J/g, and the surface of the solid amine is coated with fine powder having a mean particle size equal to or smaller than 2 ?m.Type: GrantFiled: March 29, 2016Date of Patent: January 29, 2019Assignee: SUNSTAR ENGINEERING INC.Inventors: Nozomi Usa, Tatsuya Okuno
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Publication number: 20190027656Abstract: A light emitting device 1 includes: a substrate 30; and a phosphor layer 40 composed in such a manner that a large number of phosphor particles 60 are adhered onto a flat surface 32 of the substrate 30. At least one of the phosphor particles 60 is a polyhedral phosphor particle 65 that is monodispersed, is derived from a crystal structure of garnet and has facets, and a median particle size D50 of the polyhedral phosphor particle 65 is 30 ?m or more and a maximum thickness of the phosphor layer 40 or less. It is preferable that at least one of the phosphor particles 60 adhered onto the flat surface 32 of the substrate 30 is the polyhedral phosphor particle 65 that is monodispersed, is derived from the crystal structure of the garnet, and has the facets.Type: ApplicationFiled: January 31, 2017Publication date: January 24, 2019Inventors: Youshin LEE, Shozo OSHIO, Tatsuya OKUNO, Takeshi ABE, Masahiro NAKAMURA
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Publication number: 20180237575Abstract: This invention relates to a fine powder-coated amine comprising a solid amine having a melting point equal to or higher than 50° C. and a mean particle size equal to or smaller than 20 ?m. The fine powder-coated amine has an amount of heat in the second absorption peak measured by a differential scanning calorimeter equal to or less than 220 J/g, and the surface of the solid amine is coated with fine powder having a mean particle size equal to or smaller than 2 ?m.Type: ApplicationFiled: March 29, 2016Publication date: August 23, 2018Inventors: Nozomi Usa, Tatsuya Okuno
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Patent number: 9774010Abstract: A light reflective material of the present disclosure includes a base material having light transmission property; and a porous particle located in the base material, the porous particle comprising a shell defining pores, the base material having a first refractive index, the shell having a second refractive index higher than the first refractive index. A light-emitting device of the present disclosure includes a light emitter that emits light; and a reflective layer that covers a portion of a surface of the light emitter, the reflective layer comprising a base material having light transmission property and a porous particle located in the base material, the porous particle comprising a shell defining pores, the base material having a first refractive index, the shell having a second refractive index higher than the first refractive index.Type: GrantFiled: September 29, 2015Date of Patent: September 26, 2017Assignee: Panasonic Intellectual Property Management Co., Ltd.Inventor: Tatsuya Okuno
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Patent number: 9640783Abstract: A light-emitting device according to an aspect of the present disclosure includes a light transmissive first electrode layer, a light transmissive second electrode layer, an electroluminescent layer between the first electrode layer and the second electrode layer, and a reflective layer located on a side opposite to the electroluminescent layer with respect to the second electrode layer. The reflective layer includes a base material having a refractive index equal to or higher than a refractive index of the electroluminescent layer, and fillers each having a refractive index different from that of the base material.Type: GrantFiled: September 4, 2015Date of Patent: May 2, 2017Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Masahito Yamana, Tetsushi Konda, Tatsuya Okuno
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Publication number: 20160109099Abstract: A light reflective material of the present disclosure includes a base material having light transmission property; and a porous particle located in the base material, the porous particle comprising a shell defining pores, the base material having a first refractive index, the shell having a second refractive index higher than the first refractive index. A light-emitting device of the present disclosure includes a light emitter that emits light; and a reflective layer that covers a portion of a surface of the light emitter, the reflective layer comprising a base material having light transmission property and a porous particle located in the base material, the porous particle comprising a shell defining pores, the base material having a first refractive index, the shell having a second refractive index higher than the first refractive index.Type: ApplicationFiled: September 29, 2015Publication date: April 21, 2016Inventor: TATSUYA OKUNO
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Publication number: 20160079479Abstract: A light-emitting device according to an aspect of the present disclosure includes a light transmissive first electrode layer, a light transmissive second electrode layer, an electroluminescent layer between the first electrode layer and the second electrode layer, and a reflective layer located on a side opposite to the electroluminescent layer with respect to the second electrode layer. The reflective layer includes a base material having a refractive index equal to or higher than a refractive index of the electroluminescent layer, and fillers each having a refractive index different from that of the base material.Type: ApplicationFiled: September 4, 2015Publication date: March 17, 2016Inventors: MASAHITO YAMANA, TETSUSHI KONDA, TATSUYA OKUNO
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Patent number: 8277897Abstract: A reactive polymer-supporting porous film is provided as a battery separator which comprises a porous substrate film and a partially crosslinked reactive polymer supported on the porous substrate film. The partially crosslinked reactive polymer is obtained by the reaction of a crosslinkable polymer having at least one group selected from the 3-oxetanyl group and epoxy group reactive with a polycarboxylic acid. The reactive polymer-supporting porous film has a separator and electrodes sufficiently bonded to each other and with low inner resistance suitably used for production of battery excellent in high rate performance. Further, provided is a method of producing a battery which comprises placing the electrode/reactive polymer-supporting porous film layered body in a battery container; introducing an electrolytic solution containing a cationic polymerization catalyst into the battery container thereby bonding the porous film and electrodes together.Type: GrantFiled: June 3, 2011Date of Patent: October 2, 2012Assignees: Nitto Denko Corporation, Sunstar Giken Kabushiki KaishaInventors: Yoshihiro Uetani, Keisuke Kii, Shigeru Fujita, Satoshi Nishikawa, Tatsuya Okuno
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Patent number: 8062387Abstract: A reactive polymer-supporting porous film is provided as a battery separator which comprises a porous substrate film and a partially crosslinked reactive polymer supported on the porous substrate film. The partially crosslinked reactive polymer is obtained by the reaction of a crosslinkable polymer having at least one group selected from the 3-oxetanyl group and epoxy group reactive with a polycarboxylic acid. The reactive polymer-supporting porous film has a separator and electrodes sufficiently bonded to each other and with low inner resistance suitably used for production of battery excellent in high rate performance. Further, provided is a method of producing a battery which comprises placing the electrode/reactive polymer-supporting porous film layered body in a battery container; introducing an electrolytic solution containing a cationic polymerization catalyst into the battery container thereby bonding the porous film and electrodes together.Type: GrantFiled: June 3, 2011Date of Patent: November 22, 2011Assignees: Nitto Denko Corporation, Sunstar Giken Kabushiki KaishaInventors: Yoshihiro Uetani, Keisuke Kii, Shigeru Fujita, Satoshi Nishikawa, Tatsuya Okuno
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Publication number: 20110232081Abstract: A reactive polymer-supporting porous film is provided as a battery separator which comprises a porous substrate film and a partially crosslinked reactive polymer supported on the porous substrate film. The partially crosslinked reactive polymer is obtained by the reaction of a crosslinkable polymer having at least one group selected from the 3-oxetanyl group and epoxy group reactive with a polycarboxylic acid. The reactive polymer-supporting porous film has a separator and electrodes sufficiently bonded to each other and with low inner resistance suitably used for production of battery excellent in high rate performance. Further, provided is a method of producing a battery which comprises placing the electrode/reactive polymer-supporting porous film layered body in a battery container; introducing an electrolytic solution containing a cationic polymerization catalyst into the battery container thereby bonding the porous film and electrodes together.Type: ApplicationFiled: June 3, 2011Publication date: September 29, 2011Inventors: Yoshihiro Uetani, Keisuke Kii, Shigeru Fujita, Satoshi Nishikawa, Tatsuya Okuno
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Publication number: 20110232836Abstract: A reactive polymer-supporting porous film is provided as a battery separator which comprises a porous substrate film and a partially crosslinked reactive polymer supported on the porous substrate film. The partially crosslinked reactive polymer is obtained by the reaction of a crosslinkable polymer having at least one group selected from the 3-oxetanyl group and epoxy group reactive with a polycarboxylic acid. The reactive polymer-supporting porous film has a separator and electrodes sufficiently bonded to each other and with low inner resistance suitably used for production of battery excellent in high rate performance. Further, provided is a method of producing a battery which comprises placing the electrode/reactive polymer-supporting porous film layered body in a battery container; introducing an electrolytic solution containing a cationic polymerization catalyst into the battery container thereby bonding the porous film and electrodes together.Type: ApplicationFiled: June 3, 2011Publication date: September 29, 2011Inventors: Yoshihiro Uetani, Keisuke Kii, Shigeru Fujita, Satoshi Nishikawa, Tatsuya Okuno
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Patent number: 7449362Abstract: The present invention provides an one-pack thermosetting type epoxy resin composition which is useful as an underfilling material used when a flip chip or a semiconductor package comprised of a semiconductor element held on a carrier base being mounted onto a wiring substrate; which can omit a fluxing process as adopted for improvement of the bonding force of bumps or solder balls particularly at said mounting and exhibits a good voidless property even at a reflow temperature; and which can be also applied as an adhesive, a paint, a coating material, a sealing material, or the like. The one-pack thermosetting type epoxy resin composition of the present invention comprises as essential ingredients, a liquid epoxy resin and a carboxylic acid having two or more carboxylic groups in molecule as a curing agent.Type: GrantFiled: March 29, 2002Date of Patent: November 11, 2008Assignee: Sunstar Giken Kabushiki KaishaInventors: Johshi Gotoh, Tatsuya Okuno
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Publication number: 20060257727Abstract: The invention provides a reactive polymer-supporting porous film for use as a battery separator which comprises a porous substrate film and a partially crosslinked reactive polymer supported on the porous substrate film, the partially crosslinked reactive polymer being obtained by the reaction of a crosslinkable polymer having at least one reactive group selected from the group consisting of 3-oxetanyl group and epoxy group in the molecule with a polycarboxylic acid. The reactive polymer-supporting porous film for use as a battery separator has a separator and electrodes sufficiently bonded to each other and low inner resistance so that it is suitably used for production of battery excellent in high rate performance.Type: ApplicationFiled: August 20, 2004Publication date: November 16, 2006Inventors: Yoshihiro Uetani, Keisuke Kii, Shigeru Fujita, Satoshi Nishikawa, Tatsuya Okuno
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Patent number: 6881591Abstract: An underfilling material for a semiconductor package holding semiconductor elements on a carrier substrate mounted on a circuit board, containing a one-pack type thermosetting urethane composition which preferably comprises a urethane prepolymer having a terminal isocyanate group, which is obtained by reacting a polyol with an excessive amount of a polyisocyanate, and a fine powder-coated curing agent comprising a curing agent which is in a solid state at room temperature and surface active sites of which are covered with a fine powder. This composition can achieve both the low temperature curing properties and the storage stability.Type: GrantFiled: November 26, 2003Date of Patent: April 19, 2005Assignee: Sunstar Suisse SAInventors: Johshi Gotoh, Tatsuya Okuno
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Publication number: 20040209403Abstract: The present invention provides an one-pack thermosetting type epoxy resin composition which is useful as an underfilling material used when a flip chip or a semiconductor package comprised of a semiconductor element held on a carrier base being mounted onto a wiring substrate; which can omit a fluxing process as adopted for improvement of the bonding force of bumps or solder balls particularly at said mounting and exhibits a good voidless property even at a reflow temperature; and which can be also applied as an adhesive, a paint, a coating material, a sealing material, or the like.Type: ApplicationFiled: June 2, 2004Publication date: October 21, 2004Inventors: Johshi Gotoh, Tatsuya Okuno
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Publication number: 20040112631Abstract: An underfilling material for a semiconductor package holding semiconductor elements on a carrier substrate mounted on a circuit board, containing a one-pack type thermosetting urethane composition which preferably comprises a urethane prepolymer having a terminal isocyanate group, which is obtained by reacting a polyol with an excessive amount of a polyisocyanate, and a fine powder-coated curing agent comprising a curing agent which is in a solid state at room temperature and surface active sites of which are covered with a fine powder. This composition can achieve both the low temperature curing properties and the storage stability.Type: ApplicationFiled: November 26, 2003Publication date: June 17, 2004Applicants: Sunstar Giken Kabushiki Kaisha, Uni-Sunstar B.V.Inventors: Johshi Gotoh, Tatsuya Okuno
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Patent number: 6701800Abstract: A pedal support structure for use in a vehicle contains a toe board, a steering support beam, a master cylinder, a pair of pedal support elements including pedal support portions, a supporting mechanism provided between the pedal support portions supporting a pedal lever, and a catcher bracket. When an impact is applied to the vehicle, the pedal support portions are spread apart so as to disconnect the pedal lever from the pedal supporting mechanism and the movement of the pedal lever in a direction toward an operator of the vehicle is restricted by the pedal lever contacting the catcher bracket.Type: GrantFiled: June 6, 2002Date of Patent: March 9, 2004Assignee: Fuji Jukogyo Kabushiki KaishaInventors: Osamu Saitou, Hitoshi Harashima, Masashi Ishida, Yasunori Sugita, Hirokazu Chosho, Tatsuya Okuno, Masafumi Kotani, Hiroaki Maruyama, Nozomu Sutou
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Patent number: 6660943Abstract: An underfilling material for a semiconductor package holding semiconductor elements on a carrier substrate mounted on a circuit board, containing a one-pack type thermosetting urethane composition which preferably comprises a urethane prepolymer having a terminal isocyanate group, which is obtained by reacting a polyol with an excessive amount of a polyisocyanate, and a fine powder-coated curing agent comprising a curing agent which is in a solid state at room temperature and surface active sites of which are covered with a fine powder. This composition can achieve both the low temperature curing properties and the storage stability.Type: GrantFiled: March 11, 2002Date of Patent: December 9, 2003Assignees: Sunstar Giken Kabushiki Kaisha, UNI-Sunstar B.V.Inventors: Johshi Gotoh, Tatsuya Okuno