Patents by Inventor Tomohiro Machida
Tomohiro Machida 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: 20120067417Abstract: A solar cell containing an electrode, wherein the electrode is formed by firing a conductive paste, wherein the conductive paste includes an organic binder, a solvent, conductive particles, glass frits and a compound containing Al, Ga, In or Tl. A method for producing a solar cell by forming an electrode by firing a conductive paste, wherein the conductive paste includes an organic binder, a solvent, conductive particles, glass frits and a compound containing Al, Ga, In or Tl.Type: ApplicationFiled: December 1, 2011Publication date: March 22, 2012Applicants: NAMICS CORPORATION, SHARP CORPORATIONInventors: Tomohiro MACHIDA, Yoshifumi Tonomura, Akira Miyazawa, Keisuke Ohhira, Hideyo Iida, Toshiei Yamazaki
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Publication number: 20110056554Abstract: A solar cell including a semiconductor substrate having a pn junction, a silver electrode and an aluminum electrode on a rear surface of the semiconductor substrate, and an overlap region where the silver electrode and the aluminum electrode overlap each other, a glass softening point temperature of a glass component contained in the silver electrode being equal to or higher than a glass softening point temperature of a glass component contained in the aluminum electrode, and a method of manufacturing the solar cell are provided.Type: ApplicationFiled: March 12, 2009Publication date: March 10, 2011Inventors: Shinya Yamamoto, Satoshi Tanaka, Tomohiro Machida
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Patent number: 7829784Abstract: A fabrication method of a solar battery includes at least an aluminum electrode formation step of applying, drying and baking aluminum paste on at least a portion of the back side of a solar cell to form an aluminum electrode, and a cooling step of cooling the solar cell having an aluminum electrode formed at an atmosphere temperature of not more than 10° C., after the aluminum electrode formation step. Accordingly, a solar battery having warping reduced without degrading the electric characteristics, reliability and appearance, and a fabrication method thereof are provided.Type: GrantFiled: December 6, 2004Date of Patent: November 9, 2010Assignee: Sharp Kabushiki KaishaInventors: Satoshi Tanaka, Masaomi Hioki, Keisuke Ohhira, Tomohiro Machida, Yoshikazu Kawagoe
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Publication number: 20090095344Abstract: A conductive paste for solar cell electrodes with which high FF value can be obtained stably, and a method for producing a solar cell using the same are provided. The conductive paste is a conductive paste for solar cell electrodes which includes an organic binder, a solvent, conductive particles, glass frits, and (A) a substance which changes into a gas at a temperature in the range of 150 to 800° C., and a metal oxide, (B) an organometallic compound and a metal oxide, or (C) a compound containing Al, Ga, In or Tl.Type: ApplicationFiled: April 24, 2007Publication date: April 16, 2009Inventors: Tomohiro Machida, Yoshifumi Tonomura, Akira Miyazawa, Keisuke Ohhira, Hideyo Iida, Toshiei Yamazaki
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Patent number: 7368657Abstract: A paste composition for forming an electrically conductive layer on a p-type silicon semiconductor substrate comprises aluminum powder, an organic vehicle and powder of at least one inorganic compound selected from a group consisting of an oxide-based inorganic compound and a non-oxide-based inorganic compound. The oxide-based inorganic compound has a thermal expansion coefficient smaller than the thermal expansion coefficient of aluminum and a melting temperature, a softening temperature and a decomposition temperature each higher than the melting point of aluminum. The non-oxide-based inorganic compound has a thermal expansion coefficient smaller than the thermal expansion coefficient of aluminum and at least one of a melting temperature, a softening temperature or a decomposition temperature higher than the melting point of aluminum.Type: GrantFiled: July 2, 2003Date of Patent: May 6, 2008Assignees: Toyo Aluminium Kabushiki Kaisha, Sharp Kabushiki KaishaInventors: Takashi Watsuji, Gao-Chao Lai, Tomohiro Machida, Satoshi Tanaka, Masaomi Hioki
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Patent number: 7307210Abstract: In a solar cell, at least one of reinforcing material and buffering material is provided at least partially on at least one of a back surface, a front surface and a side surface of the solar cell. With these reinforcing material and/or buffering material, occurrence of cell fracture due to load imposed by external force can be decreased.Type: GrantFiled: June 13, 2002Date of Patent: December 11, 2007Assignee: Sharp Kabushiki KaishaInventors: Junzou Wakuda, Masaomi Hioki, Satoshi Tanaka, Tomohiro Machida, Kunio Kamimura, Tatsuo Saga, Takashi Tomita
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Publication number: 20050126626Abstract: A fabrication method of a solar battery includes at least an aluminum electrode formation step of applying, drying and baking aluminum paste on at least a portion of the back side of a solar cell to form an aluminum electrode, and a cooling step of cooling the solar cell having an aluminum electrode formed at an atmosphere temperature of not more than 10° C., after the aluminum electrode formation step. Accordingly, a solar battery having warping reduced without degrading the electric characteristics, reliability and appearance, and a fabrication method thereof are provided.Type: ApplicationFiled: December 6, 2004Publication date: June 16, 2005Applicant: FUKAMI PATENT OFFICEInventors: Satoshi Tanaka, Masaomi Hioki, Keisuke Ohhira, Tomohiro Machida, Yoshikazu Kawagoe
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Publication number: 20040003836Abstract: A paste composition for forming an electrically conductive layer on a p-type silicon semiconductor substrate comprises aluminum powder, an organic vehicle and powder of at least one inorganic compound selected from a group consisting of an oxide-based inorganic compound and a non-oxide-based inorganic compound. The oxide-based inorganic compound has a thermal expansion coefficient smaller than the thermal expansion coefficient of aluminum and a melting temperature, a softening temperature and a decomposition temperature each higher than the melting point of aluminum. The non-oxide-based inorganic compound has a thermal expansion coefficient smaller than the thermal expansion coefficient of aluminum and at least one of a melting temperature, a softening temperature or a decomposition temperature higher than the melting point of aluminum.Type: ApplicationFiled: July 2, 2003Publication date: January 8, 2004Inventors: Takashi Watsuji, Gao-Chao Lai, Tomohiro Machida, Satoshi Tanaka, Masaomi Hioki
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Publication number: 20030000571Abstract: In a solar cell, at least one of reinforcing material and buffering material is provided at least partially on at least one of a back surface, a front surface and a side surface of the solar cell. With these reinforcing material and/or buffering material, occurrence of cell fracture due to load imposed by external force can be decreased.Type: ApplicationFiled: June 13, 2002Publication date: January 2, 2003Inventors: Junzou Wakuda, Masaomi Hioki, Satoshi Tanaka, Tomohiro Machida, Kunio Kamimura, Tatsuo Saga, Takashi Tomita
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Patent number: 6275825Abstract: This invention provides a data access control apparatus arranged to automatically set access right information limiting data access, in accordance with a user attribute when a user accesses a database. In setting, for a plurality of users, access right information corresponding to each user, the load on an operator can be reduced, and access right information setting errors can be prevented. An automatic setting unit reads out information from a login management information file and an employee information file on the basis of definition information of a definition files to automatically generate a user access right management file which stores a login ID, an item access right, and a record access right group code for each user.Type: GrantFiled: December 21, 1998Date of Patent: August 14, 2001Assignee: Casio Computer Co., Ltd.Inventors: Yoichi Kobayashi, Tomohiro Machida, Kunihiko Isomura
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Patent number: 5736096Abstract: A metal purifying apparatus comprises a closed melting furnace equipped with a heater, molten metal holding crucible disposed within the furnace, a vertical hollow rotary shaft penetrating through a top wall of the furnace, a packing sealing off a clearance in the shaft penetrating portion of the top wall around the shaft, rotary drive means for rotatingly driving the shaft, a hollow rotary cooling body fixedly provided at a lower end of the shaft and having an interior space communicating with an interior space of the shaft, and a cooling fluid supply source for supplying a cooling fluid to the interior of the cooling body. The rotary shaft has disposed therein a cooling fluid discharge pipe with a lower end positioned below the top wall of the furnace.Type: GrantFiled: August 2, 1996Date of Patent: April 7, 1998Assignees: Sharp Kabushiki Kaisha, Showa Aluminum Corp.Inventors: Ryotatsu Otsuka, Jin Zhang, Takashi Tomita, Tohru Nunoi, Tomohiro Machida