Patents by Inventor Keita Kobayashi

Keita Kobayashi 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).

  • Patent number: 8705225
    Abstract: An electric double layer capacitor comprising a plurality of electrode bodies comprising a positive electrode and a negative electrode laminated via a separator and being impregnated with an electrolyte solution, wherein the plurality of electrode bodies are electrically connected in series, the positive electrode and the negative electrode comprise an active material having pores, the electrolyte solution comprises an electrolyte having a cation and a counteranion of the cation, a ratio of an average pore diameter of the active material of the positive electrode to an ion diameter of the counteranion is in the range of 2.5 to 2.8, and a ratio of an average pore diameter of the active material of the negative electrode to an ion diameter of the cation is in the range of 1.65 to 1.85.
    Type: Grant
    Filed: March 29, 2010
    Date of Patent: April 22, 2014
    Assignee: TDK Corporation
    Inventors: Yoshihiko Ohashi, Keita Kobayashi, Hidetake Itoh, Kazuo Katai
  • Patent number: 8700703
    Abstract: The present invention relates to a communication system, and the invention specifically provides a contents server that appropriately stores media contents from group users in a PoC Service and a conference service. The contents server includes: a recording unit that records media information from plural users in a communicatable state participating in a predetermined group, for each group; a detecting unit that detects a communicatable state or an uncommunicatable state of each participating user, at each predetermined time; and a deleting unit that deletes confirmed media information already recorded in the recording unit, upon detecting that all the participating users are in the communicatable state.
    Type: Grant
    Filed: May 8, 2007
    Date of Patent: April 15, 2014
    Assignee: Fujitsu Limited
    Inventors: Takashi Ueno, Kazutoshi Kobayashi, Hironobu Oshika, Shouichi Kimura, Tadaaki Tanaka, Takashi Kaneko, Masaaki Nagasaka, Keita Kobayashi
  • Patent number: 8580148
    Abstract: It is an object of the present invention to provide an alkaline earth metal aluminate phosphor having good heat resistance and durability against vacuum ultraviolet rays and ultraviolet rays, among others, and a method of producing the same. An alkaline earth metal aluminate phosphor containing bivalent europium as an activator, which contains at least one element (e) selected from the group consisting of indium, tungsten, niobium, bismuth, molybdenum, tantalum, thallium and lead.
    Type: Grant
    Filed: March 12, 2004
    Date of Patent: November 12, 2013
    Assignee: Sakai Chemical Industry Co., Ltd.
    Inventors: Seiko Hirayama, Keita Kobayashi, Junya Ishii, Mizuho Wada, Shinji Nakahara
  • Patent number: 8518848
    Abstract: A titanium oxide photocatalyst that is capable of improving a decomposition rate, and a method for producing the same are provided. The titanium oxide photocatalyst of the present invention is a titanium oxide photocatalyst containing at least an anatase-type titanium oxide and fluorine, wherein a content of the fluorine is 2.5 wt % to 3.5 wt %, and 90 wt % or more of the fluorine is chemically bonded to the anatase-type titanium oxide.
    Type: Grant
    Filed: February 29, 2012
    Date of Patent: August 27, 2013
    Assignees: Panasonic Corporation, Sakai Chemical Industry Co., Ltd.
    Inventors: Noboru Taniguchi, Shuzo Tokumitsu, Tomohiro Kuroha, Kenichi Tokuhiro, Akio Nakashima, Keita Kobayashi, Shinji Nakahara
  • Publication number: 20130105737
    Abstract: Zinc sulfide phosphor that has high energy efficiency and color purity and that emits blue light is provided. Specifically, a zinc sulfide phosphor adapted for use as a light source or in a display by being applied to powder EL elements is provided. The zinc sulfide blue phosphor comprises copper, silver or both elements and nickel, iron or both elements. The phosphor is obtained by adding a compound comprising copper, silver or both elements, a zinc compound, a sulfidizing agent and a compound comprising nickel, iron or both elements as an aqueous solution to an organic solvent to form a reaction mixture, heating the mixture and removing water from the reaction mixture by azeotropic dehydration of water and the organic solvent to obtain a zinc sulfide phosphor precursor, further sintering the zinc sulfide phosphor precursor.
    Type: Application
    Filed: May 11, 2011
    Publication date: May 2, 2013
    Applicant: SAKAI CHEMICAL INDUSTRY CO., LTD.
    Inventors: Keiji Ono, Akihumi Sano, Hiroki Nagayoshi, Keita Kobayashi, Satoshi Komori, Atsuki Terabe, Yosuke Akahori, Kazuma Inoue, Hideharu Iwasaki
  • Patent number: 8401173
    Abstract: It is determined whether a call-connection condition set to a call-connection device is a first call-connection state or a second call-connection state. When the determination result shows that the first call-connection state is set, a call is connected from an originating terminal to a destination terminal. When the determination result shows that the second call-connection state is set, the call is connected from the originating terminal to the destination terminal and conversation-termination processing is performed without waiting for a disconnection request transmitted from the originating terminal or the destination terminal.
    Type: Grant
    Filed: April 4, 2007
    Date of Patent: March 19, 2013
    Assignee: Fujitsu Limited
    Inventors: Takashi Kaneko, Masaaki Nagasaka, Tadahiro Ohta, Tadaaki Tanaka, Keita Kobayashi, Norishige Ichihashi
  • Publication number: 20120237185
    Abstract: According to one embodiment, a video server apparatus includes a table generator, an acquisition module, and a controller. The table generator generates a management table associating a contents ID with the contents data, and stores the management table in the memory. The acquisition module acquires contents management information from a change request source upon generation of a change request for the contents data. The controller refers to the management table based on the contents ID included in the contents management information, executes change processing for the contents data recorded in the memory based on a reference result of the management table.
    Type: Application
    Filed: January 31, 2012
    Publication date: September 20, 2012
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Naoko Satoh, Shuichi Yamaguchi, Toshiki Mori, Hiroyuki Watanabe, Hiroyuki Wada, Keita Kobayashi
  • Patent number: 8208897
    Abstract: The present invention relates to a portable wireless terminal, and in particular, a portable wireless terminal such as a cellular phone, etc., and its security system that can reliably prevent, by remote control, improper use of the portable wireless terminal by a third party when it is lost or stolen.
    Type: Grant
    Filed: May 16, 2007
    Date of Patent: June 26, 2012
    Assignee: Fujitsu Limited
    Inventors: Takashi Kaneko, Tadaaki Tanaka, Masaaki Nagasaka, Keita Kobayashi
  • Publication number: 20120157300
    Abstract: A titanium oxide photocatalyst that is capable of improving a decomposition rate, and a method for producing the same are provided. The titanium oxide photocatalyst of the present invention is a titanium oxide photocatalyst containing at least an anatase-type titanium oxide and fluorine, wherein a content of the fluorine is 2.5 wt % to 3.5 wt %, and 90 wt % or more of the fluorine is chemically bonded to the anatase-type titanium oxide.
    Type: Application
    Filed: February 29, 2012
    Publication date: June 21, 2012
    Applicants: SAKAI CHEMICAL INDUSTRY CO., LTD., PANASONIC CORPORATION
    Inventors: Noboru TANIGUCHI, Shuzo TOKUMITSU, Tomohiro KUROHA, Kenichi TOKUHIRO, Akio NAKASHIMA, Keita KOBAYASHI, Shinji NAKAHARA
  • Patent number: 8156363
    Abstract: An information processing device and a mobile terminal include a power consumption calculator which calculates, for each processing executed by the information processing device (or mobile terminal), power consumption information concerning an amount of power consumed by executing each processing. A request generator compares the amount of power indicated by the power consumption information and a remaining amount of power of the information processing device(or mobile terminal), and generates a request to execute predetermined processing according to a result of the comparison. A request processor executes the predetermined processing in response to the generated request.
    Type: Grant
    Filed: June 30, 2008
    Date of Patent: April 10, 2012
    Assignee: Panasonic Corporation
    Inventors: Keita Kobayashi, Ryoko Morita, Yusuke Ito, Naoya Ichinose, Shoichi Araki, Osamu Nishimura, Toshio Sasaoka, Yoko Matsushima
  • Patent number: 8148289
    Abstract: A titanium oxide photocatalyst that is capable of improving a decomposition rate, and a method for producing the same are provided. The titanium oxide photocatalyst of the present invention is a titanium oxide photocatalyst containing at least an anatase-type titanium oxide and fluorine, wherein a content of the fluorine is 2.5 wt % to 3.5 wt %, and 90 wt % or more of the fluorine is chemically bonded to the anatase-type titanium oxide.
    Type: Grant
    Filed: April 18, 2008
    Date of Patent: April 3, 2012
    Assignees: Panasonic Corporation, Sakai Chemical Industry Co., Ltd.
    Inventors: Noboru Taniguchi, Shuzo Tokumitsu, Tomohiro Kuroha, Kenichi Tokuhiro, Akio Nakashima, Keita Kobayashi, Shinji Nakahara
  • Publication number: 20110103764
    Abstract: An input unit receives a viewing condition inputted by a user for a received broadcast content. A reproduction unit reproduces the broadcast content which meets the viewing condition while controlling a reproduction rate indicating a reproduction speed of the broadcast content.
    Type: Application
    Filed: January 6, 2011
    Publication date: May 5, 2011
    Applicant: PANASONIC CORPORATION
    Inventors: Ryoko MORITA, Keita Kobayashi, Yoko Matsushima, Toshio Sasaoka
  • Publication number: 20110086973
    Abstract: To provide a curable composition which is quickly cured, with which objects to be bonded can be sufficiently bonded even if gaps are formed between the objects, if the size of the gaps is at a level of at most 100 ?m. A curable composition which comprises at least one organic peroxide, an accelerator which reacts with the organic peroxide to accelerate polymerization of monomers, a monofunctional (meth)acrylate and a multifunctional (meth)acrylate, wherein the organic peroxide is encapsulated in microcapsules. Preferably the above curable composition, wherein the monofunctional (meth)acrylate contains a (meth)acrylate having a carboxylic group and a (meth)acrylate having an alicyclic hydrocarbon.
    Type: Application
    Filed: June 11, 2008
    Publication date: April 14, 2011
    Applicant: Denki Kagaku Kogyo Kabushiki Kaisha
    Inventors: Keita Kobayashi, Kimihiko Yoda, Jun Watanabe
  • Patent number: 7855013
    Abstract: The electric double-layer capacitor has a portion where a thickness of a sealing member from a surface of an outer package to a surface of a lead in a laminating direction of electrode bodies on one side of the lead differs from that on the other side of the lead such that two leads connected to each electrode body are arranged within the same plane perpendicular to the laminating direction of the electrode bodies. The electrode bodies are laminated in the outer package such as to yield portions where only one of the planar leads of a first electrode body overlaps one of the planar leads of a second electrode body in the laminating direction of the electrode bodies in the opening part of the outer package.
    Type: Grant
    Filed: July 23, 2010
    Date of Patent: December 21, 2010
    Assignee: TDK Corporation
    Inventors: Yoshihiko Ohashi, Keita Kobayashi
  • Publication number: 20100284127
    Abstract: The electric double-layer capacitor has a portion where a thickness of a sealing member from a surface of an outer package to a surface of a lead in a laminating direction of electrode bodies on one side of the lead differs from that on the other side of the lead such that two leads connected to each electrode body are arranged within the same plane perpendicular to the laminating direction of the electrode bodies. The electrode bodies are laminated in the outer package such as to yield portions where only one of the planar leads of a first electrode body overlaps one of the planar leads of a second electrode body in the laminating direction of the electrode bodies in the opening part of the outer package.
    Type: Application
    Filed: July 23, 2010
    Publication date: November 11, 2010
    Applicant: TDK CORPORATION
    Inventors: Yoshihiko OHASHI, Keita Kobayashi
  • Patent number: 7820337
    Abstract: An electrochemical device has an armor; a structure housed in the armor and having a separator disposed between first and second electrodes; and external terminals with respective leads connected to the first and second electrodes of the structure, respectively, and extending from the interior of the armor across a sealed portion of the armor to the outside; at least a surface of an intersection in each of the leads crossing the sealed portion is provided with at least one of depressed portion and projected portion. This electrochemical device is realized in compact size and with high reliability.
    Type: Grant
    Filed: March 21, 2008
    Date of Patent: October 26, 2010
    Assignee: TDK Corporation
    Inventors: Katsuo Naoi, Kenji Nishizawa, Keita Kobayashi
  • Publication number: 20100246095
    Abstract: An electric double layer capacitor comprising a plurality of electrode bodies comprising a positive electrode and a negative electrode laminated via a separator and being impregnated with an electrolyte solution, wherein the plurality of electrode bodies are electrically connected in series, the positive electrode and the negative electrode comprise an active material having pores, the electrolyte solution comprises an electrolyte having a cation and a counteranion of the cation, a ratio of an average pore diameter of the active material of the positive electrode to an ion diameter of the counteranion is in the range of 2.5 to 2.8, and a ratio of an average pore diameter of the active material of the negative electrode to an ion diameter of the cation is in the range of 1.65 to 1.85.
    Type: Application
    Filed: March 29, 2010
    Publication date: September 30, 2010
    Applicant: TDK CORPORATION
    Inventors: Yoshihiko OHASHI, Keita KOBAYASHI, Hidetake ITOH, Kazuo KATAI
  • Patent number: 7785738
    Abstract: The lithium-ion secondary battery has a portion where a thickness of a sealing member from a surface of an outer package to a surface of a lead in a laminating direction of electrode bodies on one side of the lead differs from that on the other side of the lead such that two leads connected to each electrode body are arranged within the same plane perpendicular to the laminating direction of the electrode bodies. The electrode bodies are laminated in the outer package such as to yield portions where only one of the planar leads of a first electrode body overlaps one of the planar leads of a second electrode body in the laminating direction of the electrode bodies in the opening part of the outer package.
    Type: Grant
    Filed: December 18, 2008
    Date of Patent: August 31, 2010
    Assignee: TDK Corporation
    Inventors: Yoshihiko Ohashi, Keita Kobayashi
  • Publication number: 20100111817
    Abstract: A titanium oxide photocatalyst that is capable of improving a decomposition rate, and a method for producing the same are provided. The titanium oxide photocatalyst of the present invention is a titanium oxide photocatalyst containing at least an anatase-type titanium oxide and fluorine, wherein a content of the fluorine is 2.5 wt % to 3.5 wt %, and 90 wt % or more of the fluorine is chemically bonded to the anatase-type titanium oxide.
    Type: Application
    Filed: April 18, 2008
    Publication date: May 6, 2010
    Applicants: PANASONIC CORPORATION, SAKAI CHEMICAL INDUSTRY CO., LTD.
    Inventors: Noboru Taniguchi, Shuzo Tokumitsu, Tomohiro Kuroha, Kenichi Tokuhiro, Akio Nakashima, Keita Kobayashi, Shinji Nakahara
  • Patent number: 7704635
    Abstract: An electrochemical device comprises a laminate including a first electrode layer, a separator layer, and a second electrode layer laminated in sequence; an electrolytic solution infiltrating the laminate; and a resin part covering an outer periphery of the laminate. The second electrode layer has an area smaller than the area of the separator layer and the area of the first electrode layer. The surface of the separator layer opposing the second electrode layer is provided with a noncontact part kept away from the second electrode layer. The noncontact part is formed like a ring along the outer periphery of the separator layer. The resin part further covers the noncontact part of the separator layer.
    Type: Grant
    Filed: February 25, 2005
    Date of Patent: April 27, 2010
    Assignee: TDK Corporation
    Inventors: Atsuko Kosuda, Keita Kobayashi, Satoshi Maruyama