Patents by Inventor Kazutoshi Matsumura
Kazutoshi Matsumura 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: 10373744Abstract: A resistor includes a resistive element, a protective film, and a pair of electrodes. The resistive element is made of a metal plate. The protective film is formed on the upper surface of the resistive element. The plated layers are formed to cover the electrodes. The electrodes are separated from each other with the protective film therebetween and are formed at both ends of the upper surface of the resistive element. The electrodes are formed by printing metal-containing paste.Type: GrantFiled: March 26, 2018Date of Patent: August 6, 2019Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Seiji Tsuda, Shogo Nakayama, Takeshi Iseki, Kazutoshi Matsumura
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Patent number: 10123411Abstract: A printed wiring board includes an insulating sheet, a conductive layer formed on one main surface of the insulating sheet, and an insulating film laminated with an adhesive layer on the main surface of the insulating sheet formed with the conductive layer. The position of an end part of the insulating film is located outside the position of an end part of the adhesive layer.Type: GrantFiled: September 25, 2015Date of Patent: November 6, 2018Assignee: FUJIKURA LTD.Inventor: Kazutoshi Matsumura
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Publication number: 20180211748Abstract: A resistor includes a resistive element, a protective film, and a pair of electrodes. The resistive element is made of a metal plate. The protective film is formed on the upper surface of the resistive element. The plated layers are formed to cover the electrodes. The electrodes are separated from each other with the protective film therebetween and are formed at both ends of the upper surface of the resistive element. The electrodes are formed by printing metal-containing paste.Type: ApplicationFiled: March 26, 2018Publication date: July 26, 2018Inventors: Seiji TSUDA, Shogo NAKAYAMA, Takeshi ISEKI, Kazutoshi MATSUMURA
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Patent number: 9959957Abstract: A resistor includes a resistive element, a protective film, and a pair of electrodes. The resistive element is made of a metal plate. The protective film is formed on the upper surface of the resistive element. The plated layers are formed to cover the electrodes. The electrodes are separated from each other with the protective film therebetween and are formed at both ends of the upper surface of the resistive element. The electrodes are formed by printing metal-containing paste.Type: GrantFiled: January 15, 2016Date of Patent: May 1, 2018Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Seiji Tsuda, Shogo Nakayama, Takeshi Iseki, Kazutoshi Matsumura
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Publication number: 20170231087Abstract: A printed wiring board includes an insulating sheet, a conductive layer formed on one main surface of the insulating sheet, and an insulating film laminated with an adhesive layer on the main surface of the insulating sheet formed with the conductive layer. The position of an end part of the insulating film is located outside the position of an end part of the adhesive layer.Type: ApplicationFiled: September 25, 2015Publication date: August 10, 2017Applicant: FUJIKURA LTD.Inventor: Kazutoshi Matsumura
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Publication number: 20160133362Abstract: A resistor includes a resistive element, a protective film, and a pair of electrodes. The resistive element is made of a metal plate. The protective film is formed on the upper surface of the resistive element. The plated layers are formed to cover the electrodes. The electrodes are separated from each other with the protective film therebetween and are formed at both ends of the upper surface of the resistive element. The electrodes are formed by printing metal-containing paste.Type: ApplicationFiled: January 15, 2016Publication date: May 12, 2016Inventors: SEIJI TSUDA, SHOGO NAKAYAMA, TAKESHI ISEKI, KAZUTOSHI MATSUMURA
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Patent number: 9035740Abstract: A circuit protecting element includes insulating substrate (11), a pair of surface electrodes (12) provided to both ends of a top face of insulating substrate (11), element (13) bridging the pair of surface electrodes (12) and electrically connected to the pair of surface electrodes (12), base layer (14) formed between element (13) and insulating substrate (11), and insulating layer (15) covering element (13). Base layer (14) is formed of a mixture of diatom earth and silicone resin. The structure discussed above allows stabilizing the blowout characteristics of the circuit protecting element.Type: GrantFiled: November 6, 2008Date of Patent: May 19, 2015Assignee: Panasonic Intellectual Property Management Co., Ltd.Inventors: Tomoyuki Washizaki, Toshiyuki Iwao, Takashi Kitamura, Takashi Watanabe, Naohiro Mikamoto, Masahito Fuchigami, Kazutoshi Matsumura
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Patent number: 8368502Abstract: A surface mount current fuse of the present invention includes a first base which has a recess and is smaller in width at the other end than at one end in the longitudinal direction, and a second base which has the same shape as the first base. The first base and the second base are combined to form a box-shaped body by joining the lower surface of the second base to the upper surface of the upper surface of the first base in such a manner that one end of the first base and the other end of the second base are in contact with each other. The recess of the first base and the recess of the second base form a space portion in which to dispose an element portion. The borderline between the first base and the second base passes through the center point on a side surface of the body. As a result, the surface mount current fuse has high production efficiency.Type: GrantFiled: March 14, 2007Date of Patent: February 5, 2013Assignee: Panasonic CorporationInventors: Tomoyuki Washizaki, Toshiyuki Iwao, Kenji Senda, Takashi Watanabe, Kazutoshi Matsumura, Seiji Tsuda
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Publication number: 20100245028Abstract: A circuit protecting element includes insulating substrate (11), a pair of surface electrodes (12) provided to both ends of a top face of insulating substrate (11), element (13) bridging the pair of surface electrodes (12) and electrically connected to the pair of surface electrodes (12), base layer (14) formed between element (13) and insulating substrate (11), and insulating layer (15) covering element (13). Base layer (14) is formed of a mixture of diatom earth and silicone resin. The structure discussed above allows stabilizing the blowout characteristics of the circuit protecting element.Type: ApplicationFiled: November 6, 2008Publication date: September 30, 2010Inventors: Tomoyuki Washizaki, Toshiyuki Iwao, Takashi Kitamura, Takashi Watanabe, Naohiro Mikamoto, Masahito Fuchigami, Kazutoshi Matsumura
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Publication number: 20090015365Abstract: A surface mount current fuse of the present invention includes a first base which has a recess and is smaller in width at the other end than at one end in the longitudinal direction, and a second base which has the same shape as the first base. The first base and the second base are combined to form a box-shaped body by joining the lower surface of the second base to the upper surface of the upper surface of the first base in such a manner that one end of the first base and the other end of the second base are in contact with each other. The recess of the first base and the recess of the second base form a space portion in which to dispose an element portion. The borderline between the first base and the second base passes through the center point on a side surface of the body. As a result, the surface mount current fuse has high production efficiency.Type: ApplicationFiled: March 14, 2007Publication date: January 15, 2009Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.Inventors: Tomoyuki Washizaki, Toshiyuki Iwao, Kenji Senda, Takashi Watanabe, Kazutoshi Matsumura, Seiji Tsuda
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Patent number: 6998939Abstract: Comprising a magnetic member 32 formed by laminating magnetic sheets 24, 28, 30, 31 a first impedance element 21 formed in the magnetic member 32, and a second impedance element 25 formed above the first impedance element 21, the first impedance element 21 includes a first normal impedance element 22 and a first common impedance element 23, and the second impedance element 25 includes a second common impedance element 26 and a second normal impedance element 27.Type: GrantFiled: March 7, 2001Date of Patent: February 14, 2006Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Shogo Nakayama, Takeshi Orita, Eiichi Uriu, Kazuo Oishi, Tomoyuki Washizaki, Koji Nishimura, Kazutoshi Matsumura
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Patent number: 6853267Abstract: In a noise filter having a large impedance in a common mode, a first conductor and a second conductor provided on first magnetic sheets and have spiral shapes of plural turns and spaced from each other for avoiding short-circuit. The first conductor is provided inside the spiral shape of the second conductor. The other end of the first inner conductor is located adjacent to the other end of the second inner conductor. The respective other ends of the first inner conductor and the second inner conductor on the magnetic sheet are connected at the respective other ends to first and second conductors provided on another magnetic sheet.Type: GrantFiled: January 11, 2002Date of Patent: February 8, 2005Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Hironobu Chiba, Kazuo Oishi, Eiichi Uriu, Takeshi Orita, Shogo Nakayama, Kazutoshi Matsumura, Hironori Motomitsu, Atsushi Shinkai, Tomoyuki Washizaki
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Publication number: 20040130415Abstract: In a noise filter having a large impedance in a common mode, a first conductor 12 and a second conductor 13 provided on first magnetic sheets 11a and 11b have spiral shapes of plural turns and spaced from each other for avoiding short-circuit. The first conductor are provided inside the spiral shape of the second conductor. The other end of the first inner conductor 12 is located adjacent to the other end of the second inner conductor 13. The respective other ends of the first inner conductor 12 and the second inner conductor 13 on the magnetic sheet are connected at the respective other ends to first and second conductors provided on another magnetic sheet.Type: ApplicationFiled: July 10, 2003Publication date: July 8, 2004Inventors: Hironobu Chiba, Kazuo Oishi, Eiichi Uriu, Takeshi Orita, Shogo Nakayama, Kazutoshi Matsumura, Hironori Motomitsu, Atsushi Shinkai, Tomoyuki Washizaki
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Publication number: 20030134612Abstract: Comprising a magnetic member 32 formed by laminating magnetic sheets 24, 28, 30, 31 a first impedance element 21 formed in the magnetic member 32, and a second impedance element 25 formed above the first impedance element 21, the first impedance element 21 includes a first normal impedance element 22 and a first common impedance element 23, and the second impedance element 25 includes a second common impedance element 26 and a second normal impedance element 27.Type: ApplicationFiled: October 22, 2002Publication date: July 17, 2003Inventors: Shojo Nakayama, Takeshi Orita, Eiichi Uriu, Kazuo Oishi, Tomoyuki Washizaki, Koji Nishimura, Kazutoshi Matsumura