Patents by Inventor Kojiro Ito
Kojiro Ito 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: 8603194Abstract: There is provided manufacturing method of battery comprising adhering process (S1) to adhere fluorescent material (leakage indicator including fluorescein) which emits fluorescence in response to predetermined light (ultraviolet radiation) irradiated under condition that electrolyte exists, to at least one portion of a surface on a battery case, and leakage detecting process (S2 through S9) to detect presence/absence of electrolyte leakage with fluorescence which an adhered portion emits in response to the predetermined light (ultraviolet radiation) irradiated on at least the adhered portion which has adhesion of the fluorescent material (leakage indicator including fluorescein), out of the surface on the battery case.Type: GrantFiled: December 8, 2005Date of Patent: December 10, 2013Assignee: Toyota Jidosha Kabushiki KaishaInventors: Kojiro Ito, Masato Onishi, Toshiyuki Yamashita, Michio Ozawa
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Patent number: 8213791Abstract: A communication light detecting device interconnecting light transmission paths and collocated therebetween, comprises: an optical coupling body including a core portion for photo coupling with the light transmission paths, and a light extracting portion for extracting a part of the communication light as a leakage light; and a light detecting portion having a light receiving member for receiving the leakage light. The light extracting portion is preferable to possess a lower refractive index than that of the core portion. Besides, the light extracting portion is preferable to include a light detecting use groove with a groove width of 50 ?m or more and 140 ?m or less formed by cutting and separating the core portion. Besides, the light extracting portion is preferable to be the optical coupling body in which outer diameter of the core portion is different from the outer diameter of a core of the light transmission path.Type: GrantFiled: May 14, 2009Date of Patent: July 3, 2012Assignees: Hitachi Cable, Ltd., Advanced Cable Systems Corp., NTT Communications CorporationInventors: Seiji Kojima, Kanako Suzuki, Yoshihiro Nakatani, Toshihiko Ishikawa, Takao Nishikawa, Kojiro Ito, Tetsuya Sueoka
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Patent number: 7943255Abstract: A method of manufacturing a hydrogen-absorption alloy electrode which comprises particles of a hydrogen-absorption alloy that comprises a rare earth element, Ni, Co and Al. The method comprises subjecting the hydrogen-absorption alloy particles to an alkaline treatment in a 10 to 50 weight % NaOH solution at 60 to 140° C. for 0.5 to 5 hours such that on the surface of the particles (amount of Al on surface/amount of Al in alloy)<(amount of Co on surface/amount of Co in alloy).Type: GrantFiled: October 12, 2006Date of Patent: May 17, 2011Assignee: Panasonic CorporationInventors: Kojiro Ito, Shinichiro Ito, Hajime Seri, Shinichi Yuasa, Munehisa Ikoma
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Publication number: 20100329604Abstract: An optical connector that requires no complicated fabrication operation such as highly accurate optical axis alignment and that permits an efficient pick up of part of the communication signal light being on-propagation along an optical transmission line, is provided.Type: ApplicationFiled: June 29, 2010Publication date: December 30, 2010Applicants: HITACHI CABLE, LTD., Advanced Cable Systems CorporationInventors: Seiji KOJIMA, Kanako SUZUKI, Yoshihiro NAKATANI, Toshihiko ISHIKAWA, Takao NISHIKAWA, Kojiro ITO, Tetsuya SUEOKA
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Publication number: 20100008676Abstract: A communication light detecting device interconnecting light transmission paths and collocated therebetween, comprises: an optical coupling body including a core portion for photo coupling with the light transmission paths, and a light extracting portion for extracting a part of the communication light as a leakage light; and a light detecting portion having a light receiving member for receiving the leakage light. The light extracting portion is preferable to possess a lower refractive index than that of the core portion. Besides, the light extracting portion is preferable to include a light detecting use groove with a groove width of 50 ?m or more and 140 ?m or less formed by cutting and separating the core portion. Besides, the light extracting portion is preferable to be the optical coupling body in which outer diameter of the core portion is different from the outer diameter of a core of the light transmission path.Type: ApplicationFiled: May 14, 2009Publication date: January 14, 2010Inventors: Seiji Kojima, Kanako Suzuki, Yoshihiro Nakatani, Toshihiko Ishikawa, Takao Nishikawa, Kojiro Ito, Tetsuya Sueoka
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Publication number: 20090233173Abstract: Novel cobalt oxyhydroxide is provided with which a positive electrode of an alkaline storage battery having conductivity higher than that of the conventional positive electrodes can be produced, and a method for producing the same is provided. Furthermore, an alkaline storage battery having a high capacity and that can be manufactured easily is provided. The cobalt oxyhydroxide is used for a positive electrode of an alkaline storage battery, in which a first peak corresponding to a crystal plane (003) of the cobalt oxyhydroxide and a second peak corresponding to a crystal plane (012) of the cobalt oxyhydroxide are present on a diffraction line obtained by X-ray diffraction measurement when employing copper K? radiation as a radiation source, a half-power band width of the first peak is 0.6° or less, and a value obtained by dividing a strength of the first peak by a strength of the second peak is 10 or less.Type: ApplicationFiled: May 19, 2009Publication date: September 17, 2009Applicants: PANASONIC CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Kojiro ITO, Kiyoshi HAYASHI, Toshihiro YAMADA
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Patent number: 7586288Abstract: A manufacturing method of a secondary battery according to the present invention includes a charging/discharging process wherein the secondary battery is arranged to a restraining jig, that restricts an expansion caused on the battery case with respect to at least a part of the battery case and that is configured to be removable from a charging/discharging device with the secondary battery arranged thereto regardless of the magnitude of the internal pressure in the secondary battery; a charging/discharging is performed to the secondary battery with the restraining jig mounted to the charging/discharging device; and after the completion of the charging/discharging, the restraining jig is removed from the charging/discharging device with the secondary battery arranged to the restraining jig.Type: GrantFiled: March 9, 2006Date of Patent: September 8, 2009Assignee: Toyota Jidosha Kabushiki KaishaInventors: Masato Onishi, Yasufumi Tanaka, Kojiro Ito
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Publication number: 20070099082Abstract: A method of manufacturing a hydrogen-absorption alloy electrode which comprises particles of a hydrogen-absorption alloy that comprises a rare earth element, Ni, Co and Al. The method comprises subjecting the hydrogen-absorption alloy particles to an alkaline treatment in a 10 to 50 weight % NaOH solution at 60 to 140 ° C. for 0.5 to 5 hours such that on the surface of the particles (amount of Al on surface/amount of Al in alloy)<(amount of Co on surface/amount of Co in alloy).Type: ApplicationFiled: October 12, 2006Publication date: May 3, 2007Applicants: Matsushita Electric Industrial Co., Ltd., Toyota Jidosha Kabushiki KaishaInventors: Kojiro Ito, Shinichiro Ito, Hajime Seri, Shinichi Yuasa, Munehisa Ikoma
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Patent number: 7166391Abstract: To provide an alkaline storage battery, a cobalt compound obtained by mixing a cobalt hydroxide powder and a sodium hydroxide powder and applying a heat treatment to the same in an atmosphere containing oxygen, a cobalt compound obtained by adding a sodium hydroxide aqueous solution and an aqueous solution containing an oxidizing agent to a cobalt hydroxide powder, or a cobalt compound obtained by baking a cobalt hydroxide powder in an atmosphere containing oxygen is used. This provides cobalt compounds suitable for producing long-life and highly reliable alkaline storage batteries, methods for manufacturing the same, and positive electrode plates of alkaline storage batteries employing the same.Type: GrantFiled: November 13, 2001Date of Patent: January 23, 2007Assignees: Matsushita Electric Industrial Co., Ltd., Toyota Jidosha Kabushiki KaishaInventors: Kiyoshi Hayashi, Toshihiro Yamada, Nobuyasu Morishita, Kojiro Ito
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Publication number: 20060200972Abstract: A manufacturing method of a secondary battery according to the present invention includes a charging/discharging process wherein the secondary battery is arranged to a restraining jig, that restricts an expansion caused on the battery case with respect to at least a part of the battery case and that is configured to be removable from a charging/discharging device with the secondary battery arranged thereto regardless of the magnitude of the internal pressure in the secondary battery; a charging/discharging is performed to the secondary battery with the restraining jig mounted to the charging/discharging device; and after the completion of the charging/discharging, the restraining jig is removed from the charging/discharging device with the secondary battery arranged to the restraining jig.Type: ApplicationFiled: March 9, 2006Publication date: September 14, 2006Inventors: Masato Onishi, Yasufumi Tanaka, Kojiro Ito
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Patent number: 7070644Abstract: A negative electrode of a battery, chiefly includes hydrogen absorption alloy particles each having a surface layer. The alloy particles satisfy R2/R1?0.004 and 5 ?m?R1?20 ?m, or preferably 5 ?m?R1?12.5 ?m, where R1 is a half of a median diameter of the particles and R2 is thickness of the surface layers.Type: GrantFiled: June 1, 2004Date of Patent: July 4, 2006Assignees: Matsushita Electric Industrial Co., Ltd., Toyota jidosha Kabushiki KaishaInventors: Shinichiro Ito, Hajime Seri, Kojiro Ito, Shinichi Yuasa, Nobuyasu Morishita
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Publication number: 20060134511Abstract: There is provided manufacturing method of battery comprising adhering process (S1) to adhere fluorescent material (leakage indicator including fluorescein) which emits fluorescence in response to predetermined light (ultraviolet radiation) irradiated under condition that electrolyte exists, to at least one portion of a surface on a battery case, and leakage detecting process (S2 through S9) to detect presence/absence of electrolyte leakage with fluorescence which an adhered portion emits in response to the predetermined light (ultraviolet radiation) irradiated on at least the adhered portion which has adhesion of the fluorescent material (leakage indicator including fluorescein), out of the surface on the battery case.Type: ApplicationFiled: December 8, 2005Publication date: June 22, 2006Inventors: Kojiro Ito, Masato Onishi, Toshiyuki Yamashita, Michio Ozawa
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Publication number: 20050026039Abstract: Novel cobalt oxyhydroxide is provided with which a positive electrode of an alkaline storage battery having conductivity higher than that of the conventional positive electrodes can be produced, and a method for producing the same is provided. Furthermore, an alkaline storage battery having a high capacity and that can be manufactured easily is provided. The cobalt oxyhydroxide is used for a positive electrode of an alkaline storage battery, in which a first peak corresponding to a crystal plane (003) of the cobalt oxyhydroxide and a second peak corresponding to a crystal plane (012) of the cobalt oxyhydroxide are present on a diffraction line obtained by X-ray diffraction measurement when employing copper K? radiation as a radiation source, a half-power band width of the first peak is 0.6° or less, and a value obtained by dividing a strength of the first peak by a strength of the second peak is 10 or less.Type: ApplicationFiled: July 30, 2004Publication date: February 3, 2005Applicants: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Kojiro Ito, Kiyoshi Hayashi, Toshihiro Yamada
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Publication number: 20040219429Abstract: A negative electrode of a battery, chiefly includes hydrogen absorption alloy particles each having a surface layer. The alloy particles satisfy R2/R1≧0.004 and 5 &mgr;m≦R1≦20 &mgr;m, or preferably 5 &mgr;m≦R1≦12.5 &mgr;m, where R1 is a half of a median diameter of the particles and R2 is thickness of the surface layers.Type: ApplicationFiled: June 1, 2004Publication date: November 4, 2004Applicants: Matsushita Electric Industrial Co., Ltd., Toyota Jidosha Kabushiki KaishaInventors: Shinichiro Ito, Hajime Seri, Kojiro Ito, Shinichi Yuasa, Nobuyasu Morishita
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Patent number: 6808549Abstract: A negative electrode of a battery, chiefly includes hydrogen absorption alloy particles each having a surface layer. The alloy particles satisfy R2/R1≧0.004 and 5 &mgr;m≦R1≦20 &mgr;m, or preferably 5 &mgr;m≦R1≦12.5 &mgr;m, where R1 is a half of a median diameter of the particles and R2 is thickness of the surface layers.Type: GrantFiled: May 16, 2002Date of Patent: October 26, 2004Assignees: Matsushita Electric Industrial Co., Ltd, Toyota Jidosha Kabushiki KaishaInventors: Shinichiro Ito, Hajime Seri, Kojiro Ito, Shinichi Yuasa, Nobuyasu Morishita
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Patent number: 6638666Abstract: A substrate for a transfer mask, which comprises a first silicon layer formed of monocrystalline silicon, a silicon oxide film formed on the first silicon layer and having a thickness ranging from 0.2 to 0.8 &mgr;m, and a second silicon layer formed on the silicon oxide film. A transfer mask which is manufactured by making use of this substrate is featured in that it is possible to prevent a transfer pattern from being cracked or destroyed due to stress from the silicon oxide film on the occasion of manufacturing the transfer mask, thereby providing a defect-free transfer mask.Type: GrantFiled: January 23, 2002Date of Patent: October 28, 2003Assignee: Toppan Printing Co., Ltd.Inventors: Toshio Konishi, Akira Tamura, Kojiro Ito, Yushin Sasaki, Hideyuki Eguchi
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Patent number: 6608465Abstract: A positive electrode for an alkaline storage battery having a high capacity and facilitating the manufacturing thereof and an alkaline storage battery using the same are provided. The positive electrode utilized includes active material powder containing nickel hydroxide and powder made of cobalt compounds, where a ratio of a cobalt compound with a valence of cobalt being 2.6 or more to the whole of cobalt compounds is 30 weight % or more.Type: GrantFiled: October 30, 2002Date of Patent: August 19, 2003Assignees: Matsushita Electric Industrial Co., Ltd., Toyota Jidosha Kabushiki KaishaInventors: Kojiro Ito, Kiyoshi Hayashi, Toshihiro Yamada, Nobuyasu Morishita, Shinichi Yuasa
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Publication number: 20030108791Abstract: A positive electrode for an alkaline storage battery having a high capacity and facilitating the manufacturing thereof and an alkaline storage battery using the same are provided. The positive electrode utilized includes active material powder containing nickel hydroxide and powder made of cobalt compounds, where a ratio of a cobalt compound with a valence of cobalt being 2.6 or more to the whole of cobalt compounds is 30 weight % or more.Type: ApplicationFiled: October 30, 2002Publication date: June 12, 2003Applicants: Matsushita Electric Industrial Co., Ltd., Toyota Jidosha Kabushiki KaishaInventors: Kojiro Ito, Kiyoshi Hayashi, Toshihiro Yamada, Nobuyasu Morishita, Shinichi Yuasa
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Publication number: 20030031927Abstract: A hydrogen-absorption alloy electrode includes, as a principal material, particles of a hydrogen-absorption alloy containing a rare earth element, Ni, Co, Al and Mn and leads to reduced deviation in battery characteristics after charging/discharging cycles by having the size distribution of the alloy particles limited such that d90/d10≦8 and d90−d10≦50 &mgr;m, where di (where i varies from 0 to 100) means a particle size at which cumulative size frequency with respect to the entire particles is i%.Type: ApplicationFiled: June 20, 2002Publication date: February 13, 2003Applicant: Matsushita Electric Industrial Co., Ltd.Inventors: Kojiro Ito, Shinichiro Ito, Hajime Seri, Shinichi Yuasa, Munehisa Ikoma
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Publication number: 20030005982Abstract: A negative electrode of a battery, chiefly includes hydrogen absorption alloy particles each having a surface layer. The alloy particles satisfy R2/R1≧0.004 and 5 &mgr;m≦R1≦20 &mgr;m, or preferably 5 &mgr;m≦R1≦12.5 &mgr;m, where R1 is a half of a median diameter of the particles and R2 is thickness of the surface layers.Type: ApplicationFiled: May 16, 2002Publication date: January 9, 2003Applicant: Matsushita Electric Industrial Co., Ltd.Inventors: Shinichiro Ito, Hajime Seri, Kojiro Ito, Shinichi Yuasa, Nobuyasu Morishita