Patents by Inventor Yoji Yamamoto
Yoji Yamamoto 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: 8971015Abstract: An electronic component includes a laminate including a plurality of insulating layers that are laminated on each other. A capacitor conductor is embedded in the laminate and includes an exposed portion exposed between the insulating layers at a predetermined surface of the laminate. An external electrode is provided on the predetermined surface by direct plating so as to cover the exposed portion. An outer edge of the external electrode is spaced away from the exposed portion by about 0.8 ?m or more.Type: GrantFiled: May 22, 2013Date of Patent: March 3, 2015Assignee: Murata Manufacturing Co., Ltd.Inventors: Syunsuke Takeuchi, Yoji Yamamoto, Akihiro Motoki, Makoto Ogawa, Masahito Saruban
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Patent number: 8717739Abstract: A ceramic electronic component includes a substantially rectangular ceramic element assembly, a first external electrode, and a second external electrode. The first external electrode includes at least one plating film including a first plating film disposed directly on the ceramic element assembly from outside. Likewise, the second external electrode includes at least one plating film including a second plating film disposed directly on the ceramic element assembly from outside. The first and second plating films each have a surface area per unit area equal to or larger than about 1.02 in plan view.Type: GrantFiled: March 14, 2012Date of Patent: May 6, 2014Assignee: Murata Manufacturing Co., Ltd.Inventors: Yoji Yamamoto, Akihiro Motoki, Syunsuke Takeuchi, Makoto Ogawa, Toshiyuki Iwanaga
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Publication number: 20130250474Abstract: An electronic component includes a laminate including a plurality of insulating layers that are laminated on each other. A capacitor conductor is embedded in the laminate and includes an exposed portion exposed between the insulating layers at a predetermined surface of the laminate. An external electrode is provided on the predetermined surface by direct plating so as to cover the exposed portion. An outer edge of the external electrode is spaced away from the exposed portion by about 0.8 ?m or more.Type: ApplicationFiled: May 22, 2013Publication date: September 26, 2013Applicant: Murata Manufacturing Co., Ltd.Inventors: Syunsuke TAKEUCHI, Yoji YAMAMOTO, Akihiro MOTOKI, Makoto OGAWA, Masahito SARUBAN
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Patent number: 8508913Abstract: In a method of manufacturing a laminate type electronic component, when a heat treatment is carried out after plating films, which at least partially define external electrodes, are formed by growing plated depositions deposited on exposed ends of a plurality of internal electrodes in a component main body, the presence of the plating films may not only interfere with moisture release, but may also cause blisters or bulge defects in the plating films, while moisture such as a plating solution in the component main body is removed by evaporation. To avoid such problems, cuts to divide exposed ends into multiple sections are formed in extending sections of internal electrodes. Thus, plating films include slits extending in the stacking direction at locations corresponding to positions of the cuts.Type: GrantFiled: December 27, 2011Date of Patent: August 13, 2013Assignee: Murata Manufacturing Co., Ltd.Inventors: Masahito Saruban, Makoto Ogawa, Wataru Ogawa, Akihiro Motoki, Syunsuke Takeuchi, Yoji Yamamoto
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Patent number: 8482899Abstract: A laminate includes ceramic layers laminated to each other. Internal conductors are embedded in the laminate and include exposed portions that are exposed between the ceramic layers at a lower surface and an upper surface of the laminate. External electrodes are directly plated on the lower surface and the upper surface so as to cover the respective exposed portions. Regions of the lower surface at which the exposed portions are provided are arranged to protrude from the other regions of the lower surface, and regions of the upper surface at which the exposed portions are provided are arranged to protrude from the other regions of the upper surface.Type: GrantFiled: March 28, 2011Date of Patent: July 9, 2013Assignee: Murata Manufacturing Co., Ltd.Inventors: Yoji Yamamoto, Shunsuke Takeuchi, Akihiro Motoki, Makoto Ogawa, Masahito Saruban
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Patent number: 8472160Abstract: An electronic component includes a laminate including a plurality of insulating layers that are laminated on each other. A capacitor conductor is embedded in the laminate and includes an exposed portion exposed between the insulating layers at a predetermined surface of the laminate. An external electrode is provided on the predetermined surface by direct plating so as to cover the exposed portion. An outer edge of the external electrode is spaced away from the exposed portion by about 0.8 ?m or more.Type: GrantFiled: March 18, 2011Date of Patent: June 25, 2013Assignee: Murata Manufacturing Co., Ltd.Inventors: Shunsuke Takeuchi, Yoji Yamamoto, Akihiro Motoki, Makoto Ogawa, Masahito Saruban
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Publication number: 20120236461Abstract: A ceramic electronic component includes a substantially rectangular ceramic element assembly, a first external electrode, and a second external electrode. The first external electrode includes at least one plating film including a first plating film disposed directly on the ceramic element assembly from outside. Likewise, the second external electrode includes at least one plating film including a second plating film disposed directly on the ceramic element assembly from outside. The first and second plating films each have a surface area per unit area equal to or larger than about 1.02 in plan view.Type: ApplicationFiled: March 14, 2012Publication date: September 20, 2012Applicant: MURATA MANUFACTURING CO., LTD.Inventors: Yoji YAMAMOTO, Akihiro MOTOKI, Syunsuke TAKEUCHI, Makoto OGAWA, Toshiyuki IWANAGA
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Publication number: 20120169180Abstract: In a method of manufacturing a laminate type electronic component, when a heat treatment is carried out after plating films, which at least partially define external electrodes, are formed by growing plated depositions deposited on exposed ends of a plurality of internal electrodes in a component main body, the presence of the plating films may not only interfere with moisture release, but may also cause blisters or bulge defects in the plating films, while moisture such as a plating solution in the component main body is removed by evaporation. To avoid such problems, cuts to divide exposed ends into multiple sections are formed in extending sections of internal electrodes. Thus, plating films include slits extending in the stacking direction at locations corresponding to positions of the cuts.Type: ApplicationFiled: December 27, 2011Publication date: July 5, 2012Applicant: MURATA MANUFACTURING CO., LTD.Inventors: Masahito SARUBAN, Makoto OGAWA, Wataru OGAWA, Akihiro MOTOKI, Syunsuke TAKEUCHI, Yoji YAMAMOTO
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Publication number: 20110235232Abstract: An electronic component includes a laminate including a plurality of insulating layers that are laminated on each other. A capacitor conductor is embedded in the laminate and includes an exposed portion exposed between the insulating layers at a predetermined surface of the laminate. An external electrode is provided on the predetermined surface by direct plating so as to cover the exposed portion. An outer edge of the external electrode is spaced away from the exposed portion by about 0.8 ?m or more.Type: ApplicationFiled: March 18, 2011Publication date: September 29, 2011Applicant: Murata Manufacturing Co., Ltd.Inventors: Syunsuke Takeuchi, Yoji Yamamoto, Akihiro Motoki, Makoto Ogawa, Masahito Saruban
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Publication number: 20110235234Abstract: A laminate includes ceramic layers laminated to each other. Internal conductors are embedded in the laminate and include exposed portions that are exposed between the ceramic layers at a lower surface and an upper surface of the laminate. External electrodes are directly plated on the lower surface and the upper surface so as to cover the respective exposed portions. Regions of the lower surface at which the exposed portions are provided are arranged to protrude from the other regions of the lower surface, and regions of the upper surface at which the exposed portions are provided are arranged to protrude from the other regions of the upper surface.Type: ApplicationFiled: March 28, 2011Publication date: September 29, 2011Applicant: MURATA MANUFACTURING CO., LTD.Inventors: Yoji YAMAMOTO, Syunsuke TAKEUCHI, Akihiro MOTOKI, Makoto OGAWA, Masahito SARUBAN
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Patent number: 7414356Abstract: A cathode structure comprises a heater including a columnar ceramic body and a heating wire that is partially buried in the ceramic body, and a cathode unit disposed at a first end surface of the ceramic body. The heating wire leads out from a second end surface of the ceramic body.Type: GrantFiled: January 12, 2004Date of Patent: August 19, 2008Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Yoji Yamamoto, Mika Yamagishi, Satoru Nakagawa
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Patent number: 6992427Abstract: A cathode sleeve structure for housing a heater. The cathode sleeve structure includes: a case member that is cylindrical and an end thereof is open; a plurality of supporting members that extend radially from vicinities of the end of the case member; and a linkage member that connects the plurality of supporting members. The case member, the plurality of supporting members, and the linkage member are formed as one piece.Type: GrantFiled: December 17, 2002Date of Patent: January 31, 2006Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Mika Yamagishi, Satoru Nakagawa, Yoji Yamamoto
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Publication number: 20050171094Abstract: A pyrrolo[3,2-d]pyrimidine derivative represented by the formula (I) or a pharamaceutically acceptable salt of the derivative. The derivative or salt is useful as a GSK-3 inhibitor.Type: ApplicationFiled: February 24, 2003Publication date: August 4, 2005Inventors: Kenichiro Kataoka, Tomomi Kosugi, Toshihiro Ishii, Takahiro Takeuchi, Takaharu Tsutsumi, Akira Nakano, Yoji Yamamoto, Noboru Yoshioka
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Patent number: 6828717Abstract: The present invention provides an electron gun which includes an electrically non-conductive substrate through which a perforation is provided. The electron gun is characterized in that a cathode-structure supporting member is welded to power-feeding members that are bonded to a stem side of the electrically non-conductive substrate, the cathode-structure supporting member supplying power to a heater included in a cathode structure. Structured as such, it becomes possible to reduce the size of the electron gun in the tube-axis direction, since an additional member for supporting the heater becomes unnecessary. In addition, the cathode-structure supporting member makes the electrically non-conductive substrate to work as a wiring board for supplying voltage to the cathode, thereby realizing a slim cathode-ray tube. Further, the above structure improves accuracy in the assembly process of the electron gun, thereby improving the yield factor.Type: GrantFiled: October 22, 2002Date of Patent: December 7, 2004Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Yoji Yamamoto, Satoru Nakagawa, Mika Yamagishi
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Publication number: 20040207307Abstract: A cathode structure comprises a heater including a columnar ceramic body and a heating wire that is partially buried in the ceramic body, and a cathode unit disposed at a first end surface of the ceramic body. The heating wire leads out from a second end surface of the ceramic body.Type: ApplicationFiled: January 12, 2004Publication date: October 21, 2004Inventors: Yoji Yamamoto, Mika Yamagishi, Satoru Nakagawa
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Patent number: 6676968Abstract: A medicinal composition containing one or more compounds selected from the compounds represented by the following formula (I), salts of these compounds, solvates of these compounds and solvates of these salts and being capable of reducing the contact of the compounds with the components in the bile or pancreatic juice.Type: GrantFiled: July 18, 2001Date of Patent: January 13, 2004Assignee: Teijin LimitedInventors: Kiyoyuki Sakon, Masahiko Narasaki, Kentaro Fujinaga, Yoji Yamamoto, Hiroaki Mitsuhashi, Kazuoki Tsuruta, Hirofumi Tanabe, Yoshiaki Igarashi
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Publication number: 20030173886Abstract: A cathode sleeve structure for housing a heater. The cathode sleeve structure comprises: a case member that is cylindrical and an end thereof is open; a plurality of supporting members that extend radially from vicinities of the end of the case member; and a linkage member that connects the plurality of supporting members. The case member, the plurality of supporting members, and the linkage member are formed as one piece.Type: ApplicationFiled: December 17, 2002Publication date: September 18, 2003Inventors: Mika Yamagishi, Satoru Nakagawa, Yoji Yamamoto
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Publication number: 20030080668Abstract: The present invention provides an electron gun which includes an electrically non-conductive substrate through which a perforation is provided. The electron gun is characterized in that a cathode-structure supporting member is welded to power-feeding members that are bonded to a stem side of the electrically non-conductive substrate, the cathode-structure supporting member supplying power to a heater included in a cathode structure. Structured as such, it becomes possible to reduce the size of the electron gun in the tube-axis direction, since an additional member for supporting the heater becomes unnecessary. In addition, the cathode-structure supporting member makes the electrically non-conductive substrate to work as a wiring board for supplying voltage to the cathode, thereby realizing a slim cathode-ray tube. Further, the above structure improves accuracy in the assembly process of the electron gun, thereby improving the yield factor.Type: ApplicationFiled: October 22, 2002Publication date: May 1, 2003Inventors: Yoji Yamamoto, Satoru Nakagawa, Mika Yamagishi
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Publication number: 20020044281Abstract: Amount of sub-micron particles in fluid such as ultra pure water classified each range of particle dimensions are detected by a simple apparatus in which a light beam from a coherent light source (1) is converged (2) in such a manner that the light beam is focused in a stream (3) of particle-containing fluid, the light passed through the stream and diffracted by the particles is received by a photo-detector (4) which is positioned at an opposite side of the coherent light source with respect to the stream and substantially on an optical axis of the light beam, so that the number of particles in the stream is distinguished into plural ranges according to each frequencies of the signals emitted from the photo-detector and counting each numbers of the particles contained the ranges.Type: ApplicationFiled: August 23, 2001Publication date: April 18, 2002Inventors: Akira Sakamoto, Yasuhiro Hayashi, Yoshihisa Yamashita, Yoji Yamamoto
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Patent number: 6300711Abstract: An indirectly heated cathode that can enhance the withstand voltage and the efficiency of radiating heat from a heater to a tubular sleeve, and a cathode ray tube using such a cathode. The indirectly heated cathode comprises a hot cathode emitting electrons at one end, and a tubular sleeve including a high melting point metal and having a heater inside. A thermal absorption layer is formed on the inside face of the tubular sleeve and the thermal absorption layer contains a boron compound.Type: GrantFiled: August 20, 1998Date of Patent: October 9, 2001Assignee: Matsushita Electronics CorporationInventors: Yoji Yamamoto, Katsuyuki Yamashita