Patents by Inventor Kazuo Ikeda
Kazuo Ikeda 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: 20240093016Abstract: Provided is a technique of obtaining films with higher dielectric breakdown strength at high temperatures and folding resistance. A resin composition comprises (1) a syndiotactic polystyrene resin, (2) a polyphenylene ether resin, and (3) at least one member selected from the group consisting of styrene-based thermoplastic elastomers and atactic polystyrene resins, wherein the content of the polyphenylene ether resin in the resin composition is 6 mass % or more.Type: ApplicationFiled: October 7, 2020Publication date: March 21, 2024Applicant: Oji Holdings CorporationInventors: Takumi SUEI, Kazuo IKEDA, Akihiro KAKEHI
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Patent number: 11113297Abstract: A website server provides a program for a web page of a predetermined website to a user terminal. The program for the web page causes the user terminal to implement a display module and a search module. The display module causes a first article selected by a user to be displayed and causes a search window to be displayed at a position after a position where the first article ends. The search module searches for a second article related to a character string entered in the search window. The display module causes information related to the second article identified by a search using the search module to be displayed near the search window.Type: GrantFiled: November 6, 2018Date of Patent: September 7, 2021Assignee: Qufooit Japan Ltd.Inventor: Kazuo Ikeda
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Publication number: 20200165497Abstract: Provided is a double-sided adhesive tape or sheet which is light-weight and has excellent strength and insulating properties even when the thickness of the tape or sheet is small. This double-sided adhesive tape or sheet comprises a laminate including a support and two adhesive agent layers formed on opposite surfaces of the support, wherein the support contains a polypropylene resin, the adhesive agent layers contain an acrylic polymer, the laminate has a total thickness (Ds) of 4-15 ?m, the value of the ratio Dp/Ds of the thickness (Dp) of the support to the total thickness (Ds) of the laminate is 0.15-0.6, and the laminate has a density of 0.90-1.10 g/cm3.Type: ApplicationFiled: July 13, 2018Publication date: May 28, 2020Inventors: Kazuo IKEDA, Masahiro NAKATA, Minoru INOUE, Takamichi YAMAGUCHI, Tohru MURAI, Kenji YANAGISAWA
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Patent number: 10431380Abstract: Provided is a biaxially stretched polypropylene film for capacitors having a thin thickness and having excellent initial voltage resistance and excellent long-term heat resistance and voltage resistance, and also provided is a metallized polypropylene film for capacitors. The polypropylene film for capacitors is obtained by biaxially stretching a polypropylene resin, the polypropylene film having a crystallite size of 122 ? or less as determined by the Scherrer's equation from the half width of the reflection peak from (040) plane of ?-crystal measured by a wide angle X-ray diffraction method, and the polypropylene film having a value of birefringence ?Nyz with respect to a thickness direction of 7.0×10?3 or more and 10.0×10?3 or less as measured by an optical birefringence measurement.Type: GrantFiled: September 30, 2014Date of Patent: October 1, 2019Assignee: OJI HOLDINGS CORPORATIONInventors: Masahiro Nakata, Kazuo Ikeda, Tadakazu Ishiwata, Akihiro Kakehi, Yoshinori Matsuo, Yuichi Shishido, Shigeo Murase
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Publication number: 20190138657Abstract: A website server provides a program for a web page of a predetermined website to a user terminal. The program for the web page causes the user terminal to implement a display module and a search module. The display module causes a first article selected by a user to be displayed and causes a search window to be displayed at a position after a position where the first article ends. The search module searches for a second article related to a character string entered in the search window. The display module causes information related to the second article identified by a search using the search module to be displayed near the search window.Type: ApplicationFiled: November 6, 2018Publication date: May 9, 2019Inventor: Kazuo IKEDA
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Publication number: 20170229243Abstract: Provided is a biaxiaiiy stretched polypropylene film for capacitors having a thin thickness and having excellent initial voltage resistance and excellent long-term heat resistance and voltage resistance, and also provided is a metallized polypropylene film for capacitors. The polypropylene film for capacitors is obtained by biaxiaiiy stretching a polypropylene resin, the polypropylene film having a crystallite size of 122 ? or less as determined by the Scherrer's equation from the half width of the reflection peak from (040) plane of ?-crystal measured by a wide angle X-ray diffraction method, and the polypropylene film having a value of birefringence ?Nyz with respect to a thickness direction of 7.0×10?3 or more and 10.0×10?3 or less as measured by an optical birefringence measurement.Type: ApplicationFiled: September 30, 2014Publication date: August 10, 2017Applicant: OJI HOLDINGS CORPORATIONInventors: Masahiro NAKATA, Kazuo IKEDA, Tadakazu ISHAWATA, Akihiro KAKEHI, Yoshinori MATSUO, Yuichi SHISHIDO, Shigeo MURASE
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Publication number: 20110288766Abstract: A navigation apparatus that provides guidance along a route to a destination using a guidance image on which a plurality of guidance signs, respectively indicative of a guidance direction at a guidance point, are arranged in order of proximity to a current point, includes a setting unit that preliminarily sets a first given distance from the current point; an extracting unit that extracts a given guidance point on the route; a calculating unit that calculates a distance from the current point to the given guidance point extracted by the extracting unit; and a display control unit that when the distance to the given guidance point calculated by the calculating unit becomes equal to or less than the first given distance, changes a color of a guidance sign at the guidance point to a color different from an current display color.Type: ApplicationFiled: January 29, 2008Publication date: November 24, 2011Applicants: INCREMENT P CORPORATION, PIONEER CORPORATIONInventors: Makoto Nagasawa, Kenji Kikui, Kumiko Shudo, Satoshi Sasaki, Kazuo Ikeda
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Patent number: 8033793Abstract: The present invention provides an impeller in which a metallic bush can be inserted correctly into a synthetic resin impeller main body manufactured by resin molding using a die, and a determination as to whether or not the impeller has been manufactured correctly can be made easily. The impeller comprises: a metallic bush comprising a circumferential boss portion having a substantially truncated cone-shaped throttle portion positioned on a front surface axial end side, a periaxial support boss portion positioned in an axial center, and a circumferential protruding portion positioned on a back surface axial end side; and an impeller main body made of synthetic resin and formed with a V-shaped bulging portion that bulges axially in the center of a front surface side of a disk-shaped vane portion fulcrum, in which a plurality of vanes are formed integrally on the periphery of the V-shaped bulging portion.Type: GrantFiled: August 9, 2007Date of Patent: October 11, 2011Assignees: Sigma Co., Ltd., Yamada Manufacturing Co., Ltd.Inventors: Kazuo Ikeda, Yasutaka Okuda, Ryouhei Adachi, Satoshi Maruyama, Satoshi Hoshino
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Patent number: 7934908Abstract: The present invention provides a manufacturing method for an impeller with which molding and high-quality finishing can be performed extremely easily and quickly through resin molding using a die, and an impeller manufactured by the impeller manufacturing method. A metallic bush is disposed in a die, whereupon a resin material is injected through a gate in the die. A connecting portion between an unnecessary resin portion formed from residual resin material in the gate and a resin impeller main body molded around the bush is formed to be thin, and the unnecessary resin portion is removed from the impeller main body using pushing or withdrawing means.Type: GrantFiled: August 9, 2007Date of Patent: May 3, 2011Assignees: Sigma Co., Ltd., Yamada Manufacturing Co., Ltd.Inventors: Kazuo Ikeda, Yasutaka Okuda, Satoshi Maruyama, Ryouhei Adachi
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Patent number: 7679474Abstract: A surface acoustic wave resonator has a piezoelectric substrate (11), an IDT (13) formed of a plurality of electrode fingers (12) disposed on piezoelectric substrate (11), and reflectors (14) disposed near the opposite ends of IDT (13). The IDT (13) has a gradation region where the electrode finger pitch of the plurality of electrode fingers (12) at the opposite ends is different from the electrode finger pitch near the center of the IDT (13). In this gradation region, the electrode finger pitches are sequentially varied in the range from the electrode finger at the farthest end that is one end of the gradation region to the electrode finger lying at the other end of the gradation region. The electrode finger pitch of the electrode fingers at the farthest end that is one end of the gradation region is set to be 1 through 5% smaller than the electrode finger pitch near the center of the IDT (13).Type: GrantFiled: January 6, 2005Date of Patent: March 16, 2010Assignee: Panasonic CorporationInventors: Tsutomu Igaki, Kazunori Nishimura, Kazuo Ikeda, Ken Matsunami
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Patent number: 7646266Abstract: A Q-factor of a resonator at a high frequency is improved. An insertion loss of a filter using such a resonator and steepness of the filter are improved. A plurality of surface acoustic wave resonators including an interdigital transducer and reflecting electrodes provided on both sides thereof are connected in parallel on a piezoelectric substrate. Resonance frequencies of the surface acoustic wave resonators are rendered equal among all the resonators connected in parallel. In this way, the Q-factor of the resonance can be improved. A surface acoustic wave filter using such surface acoustic wave resonators is formed in order to improve the insertion loss and the steepness.Type: GrantFiled: April 21, 2005Date of Patent: January 12, 2010Assignee: Panasonic CorporationInventors: Tsutomu Igaki, Shun-ichi Seki, Kazuo Ikeda
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Publication number: 20090108960Abstract: A surface acoustic wave resonator has piezoelectric substrate (11), IDT (13) formed of a plurality of electrode fingers (12) disposed on piezoelectric substrate (11), and reflectors (14) disposed near the opposite ends of IDT (13). IDT (13) has a gradation region where the electrode finger pitch of the plurality of electrode fingers (12) at the opposite ends is different from the electrode finger pitch near the center of IDT (13). In this gradation region, the electrode finger pitches are sequentially varied in the range from the electrode finger at the farthest end that is one end of the gradation region to the electrode finger lying at the other end of the gradation region. The electrode finger pitch of the electrode fingers at the farthest end that is one end of the gradation region is set to be 1 through 5% smaller than the electrode finger pitch near the center of IDT (13).Type: ApplicationFiled: January 6, 2005Publication date: April 30, 2009Inventors: Tsutomu Igaki, Kazunori Nishimura, Kazuo Ikeda, Ken Matsunami
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Patent number: 7482895Abstract: A saw filter of the invention has a piezoelectric substrate (11), plural numbers of IDT electrodes (12,13) arranged on a surface of the piezoelectric substrate (11) as well as on a first surface acoustic wave propagation path, reflector electrodes (14,15) arranged at least at both ends of a first electrode pattern formed including the plural IDT electrodes (12,13), one or more IDT electrodes (16) arranged on the surface of the piezoelectric substrate (11) as well as on a second surface acoustic wave propagation path which is different from the first surface acoustic wave propagation path and reflector electrodes arranged at least at both sides of a second electrode pattern formed including the IDT electrode (16), in which the IDT electrodes (12,13) on the first surface acoustic wave propagation path are electrically connected in series by connecting wirings (19) and the IDT electrode (16) on the second surface acoustic wave propagation path is connected between the connecting wirings (19) and the ground (20),Type: GrantFiled: July 28, 2004Date of Patent: January 27, 2009Assignee: Panasonic CorporationInventors: Tsutomu Igaki, Kazuo Ikeda, Akio Tsunekawa
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Publication number: 20080104837Abstract: The present invention provides an impeller in which a metallic bush can be inserted correctly into a synthetic resin impeller main body manufactured by resin molding using a die, and a determination as to whether or not the impeller has been manufactured correctly can be made easily. The impeller comprises: a metallic bush comprising a circumferential boss portion having a substantially truncated cone-shaped throttle portion positioned on a front surface axial end side, a periaxial support boss portion positioned in an axial center, and a circumferential protruding portion positioned on a back surface axial end side; and an impeller main body made of synthetic resin and formed with a V-shaped bulging portion that bulges axially in the center of a front surface side of a disk-shaped vane portion fulcrum, in which a plurality of vanes are formed integrally on the periphery of the V-shaped bulging portion.Type: ApplicationFiled: August 9, 2007Publication date: May 8, 2008Applicants: SIGMA CO., LTD., YAMADA MANUFACTURING CO., LTD.Inventors: Kazuo Ikeda, Yasutaka Okuda, Ryouhei Adachi, Satoshi Maruyama, Satoshi Hoshino
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Publication number: 20080107539Abstract: The present invention provides a manufacturing method for an impeller with which molding and high-quality finishing can be performed extremely easily and quickly through resin molding using a die, and an impeller manufactured by the impeller manufacturing method. A metallic bush is disposed in a die, whereupon a resin material is injected through a gate in the die. A connecting portion between an unnecessary resin portion formed from residual resin material in the gate and a resin impeller main body molded around the bush is formed to be thin, and the unnecessary resin portion is removed from the impeller main body using pushing or withdrawing means.Type: ApplicationFiled: August 9, 2007Publication date: May 8, 2008Applicants: Sigma Co., Ltd., YAMADA MANUFACTURING CO., LTD.Inventors: Kazuo Ikeda, Yasutaka Okuda, Satoshi Maruyama, Ryouhei Adachi
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Publication number: 20080038491Abstract: The present invention relates to a method for producing an ink jet recording sheet characterized by including: applying a coating liquid containing at least both a temperature-sensitive polymeric compound and a pigment the temperature-sensitive polymeric compound having a temperature region where hydrophobicity is exhibited and a temperature region where hydrophilicity is exhibited, the coating liquid becoming more viscous or gelating in the temperature region where hydrophilicity is exhibited, onto either an air-permeable support or at least one undercoating layer provided on an air-permeable support in the temperature region where hydrophobicity is exhibited, to form a coating layer of the coating liquid, bringing the temperature thereof to the temperature region where the temperature-sensitive polymeric compound exhibits hydrophilicity to increase the viscosity of the coating layer or gelate the coating layer, then applying a wetting liquid containing an ink fixing agent (and colloidal particles) onto theType: ApplicationFiled: September 8, 2005Publication date: February 14, 2008Applicant: OJI PAPER CO., LTD.Inventors: Kazuo Ikeda, Motoko Hiraki, Shinichi Asano, Tomoyuki Hisaoka, Nobuhisa Dano, Hiroyuki Nemoto
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Publication number: 20080018417Abstract: A Q-factor of a resonator at a high frequency is improved. An insertion loss of a filter using such a resonator and steepness of the filter are improved. A plurality of surface acoustic wave resonators including an interdigital transducer and reflecting electrodes provided on both sides thereof are connected in parallel on a piezoelectric substrate. Resonance frequencies of the surface acoustic wave resonators are rendered equal among all the resonators connected in parallel. In this way, Q-factor of resonance can be improved. A surface acoustic wave filter using such surface acoustic wave resonators is formed in order to improve the insertion loss and the steepness.Type: ApplicationFiled: April 21, 2005Publication date: January 24, 2008Inventors: Tsutomu Igaki, Shun-ichi Seki, Kazuo Ikeda
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Patent number: 7064471Abstract: A surface acoustic wave (SAW) device includes a comb-shaped electrode 2, a reflector 3 and a plurality of auxiliary electrodes 6a and 6b for surrounding the comb-shaped electrode 2 and the reflector 3, which are electrically independent of each other and have different widths locally. The SAW device is capable of efficiently and electrically uniformizing electric charge generated by pyroelectric property of a piezoelectric substrate 1.Type: GrantFiled: June 18, 2002Date of Patent: June 20, 2006Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Kazuo Ikeda, Kazunori Nishimura, Yasumichi Murase
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Patent number: 6972509Abstract: A surface acoustic wave (SAW) device includes a piezoelectric substrate, and on this substrate there are provided comb electrodes for forming an inter digital transducer (IDT), reflector electrodes placed closely along a traveling direction of a surface wave generated by the IDT, and a frame-like short-circuited auxiliary electrode having a width varying depending on its portions. This structure allows to uniform electric charges overall the electrode-surfaces, where the electric charges are generated in a heat treatment applied to the piezoelectric substrate during the manufacturing of the SAW device. Thus even after the device is diced into pieces, this structure can prevent damages of the electrodes or degradation in electrical properties due to an electric discharge generated by accumulated electric charges caused by pyroelectricity of the substrate.Type: GrantFiled: April 17, 2002Date of Patent: December 6, 2005Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Kazuo Ikeda, Yasumichi Murase, Kazunori Nishimura
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Patent number: 6946929Abstract: A surface acoustic wave device comprises: a plurality of surface acoustic wave elements provided on a piezoelectric substrate to be electrically isolated with each other, a substrate provided with a first conductor electrically connecting the plurality of surface acoustic wave elements, a second conductor electrically isolated to the first conductor and an external terminal, and a sealing member for protecting the substrate and the piezoelectric substrate. For the substrate, a package having a recess or an insulating substrate is used. The first conductor is electrically isolated to the external terminal, while the second conductor is electrically connected with the external terminal. The above-described structure provides a small-sized surface acoustic wave device with excellent-attenuation characteristics.Type: GrantFiled: February 10, 2003Date of Patent: September 20, 2005Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Kazuo Ikeda, Masahiro Takada, Kazunori Nishimura