Patents by Inventor Tsutomu Yokoyama

Tsutomu Yokoyama 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: 11916194
    Abstract: A solid electrolyte represented by the following formula (1): Li7?x+y(La3?yBay)(Zr2?xMx)O12(1), wherein 0.20?x<1.50, 0.00<y<0.30, and M is two or more elements selected from the group consisting of Nb, Ta, and Sb.
    Type: Grant
    Filed: August 27, 2021
    Date of Patent: February 27, 2024
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Hitoshi Yamamoto, Tsutomu Teraoka, Tomofumi Yokoyama
  • Patent number: 10150559
    Abstract: The present invention aims at solving the problem of providing a control device for an unmanned flying object that can elucidate the cause of a fault in the unmanned flying object after the fact and that has a function of desirably preventing a crash before it even happens, and at solving the problem of providing an unmanned flying object that incorporates such a control device. The control device of the present invention is a device for controlling a single rotor blade motor, and includes a calculation device, a storage device, a data output device, and a voltage detection device: the calculation device acquires and outputs information of various types; the storage device accumulates information of various types received from the calculation device; the data output device outputs information from the calculation device to an external control device; and the voltage detection device acquires voltage information from a battery or the like and supplies it to the calculation device.
    Type: Grant
    Filed: April 18, 2015
    Date of Patent: December 11, 2018
    Assignee: Adtex Inc.
    Inventors: Hiroo Sato, Yasumasa Uruta, Tsutomu Yokoyama
  • Publication number: 20180170535
    Abstract: The present invention aims at solving the problem of providing a control device for an unmanned flying object that can elucidate the cause of a fault in the unmanned flying object after the fact and that has a function of desirably preventing a crash before it even happens, and at solving the problem of providing an unmanned flying object that incorporates such a control device. The control device of the present invention is a device for controlling a single rotor blade motor, and includes a calculation device, a storage device, a data output device, and a voltage detection device: the calculation device acquires and outputs information of various types; the storage device accumulates information of various types received from the calculation device; the data output device outputs information from the calculation device to an external control device; and the voltage detection device acquires voltage information from a battery or the like and supplies it to the calculation device.
    Type: Application
    Filed: April 18, 2015
    Publication date: June 21, 2018
    Inventors: Hiroo SATO, Yasumasa URUTA, Tsutomu YOKOYAMA
  • Patent number: 7835756
    Abstract: A mobile communications system of the present invention obtains in advance information on communications environments in a mobile communications system and provides users with the information on communications environments. The mobile communications system also predicts the movement of users and provides seamless services based on the predictions. A mobile communications system of the present invention includes an information acquisition unit for obtaining information regarding resources of a given object, an information memory for storing the obtained information on resources of a given object, and an information provision unit for searching the information memory in response to a request for provision of the information on resources of a given object transmitted from a mobile communications terminal, and providing the information on resources of a given object found in the search to the mobile communications terminal.
    Type: Grant
    Filed: April 18, 2007
    Date of Patent: November 16, 2010
    Assignee: NTT DoCoMo, Inc.
    Inventors: Yoko Kikuta, Kenji Sakamoto, Tsutomu Yokoyama, Kenichi Yamazaki
  • Publication number: 20090293997
    Abstract: The present invention relates to a method for producing a lead-base alloy grid for lead-acid battery having excellent mechanical strength, corrosion resistance, and growth resistance the method including heat treatment of a Pb—Ca—Sn alloy grid being subjected to natural aging for 2 to 750 hours before heat treatment.
    Type: Application
    Filed: August 6, 2009
    Publication date: December 3, 2009
    Applicant: The Furukawa Battery Co., Ltd.
    Inventors: Jun Furukawa, Kazuo Matsushita, Tsutomu Yokoyama
  • Patent number: 7454196
    Abstract: A mobile communications system of the present invention obtains in advance information on communications environments in a mobile communications system and provides users with the information on communications environments. The mobile communications system also predicts the movement of users and provides seamless services based on the predictions. A mobile communications system of the present invention includes an information acquisition unit for obtaining information regarding resources of a given object, an information memory for storing the obtained information on resources of a given object, and an information provision unit for searching the information memory in response to a request for provision of the information on resources of a given object transmitted from a mobile communications terminal, and providing the information on resources of a given object found in the search to the mobile communications terminal.
    Type: Grant
    Filed: April 18, 2007
    Date of Patent: November 18, 2008
    Assignee: NTT DoCoMo, Inc.
    Inventors: Yoko Kikuta, Kenji Sakamoto, Tsutomu Yokoyama, Kenichi Yamazaki
  • Patent number: 7340245
    Abstract: A mobile communications system of the present invention obtains in advance information on communications environments in a mobile communications system and provides users with the information on communications environments. The mobile communications system also predicts the movement of users and provides seamless services based on the predictions. A mobile communications system of the present invention includes an information acquisition unit for obtaining information regarding resources of a given object, an information memory for storing the obtained information on resources of a given object, and an information provision unit for searching the information memory in response to a request for provision of the information on resources of a given object transmitted from a mobile communications terminal, and providing the information on resources of a given object found in the search to the mobile communications terminal.
    Type: Grant
    Filed: August 15, 2005
    Date of Patent: March 4, 2008
    Assignee: NTT DoCoMo, Inc.
    Inventors: Yoko Kikuta, Kenji Sakamoto, Tsutomu Yokoyama, Kenichi Yamazaki
  • Patent number: 7283636
    Abstract: The present invention provides a planer acoustic transducer including a vibrating diaphragm including a spiral voice coil provided on both surfaces or on one surface of an insulating base film; and a permanent magnet corresponding to the voice coil, wherein, in the vibrating diaphragm, the spiral voice coil is formed by applying a wire conductor, in a coil pattern, onto a sheet-like substrate having an adhesive layer on at least one surface thereof. Alternatively, at least a portion of the vibrating diaphragm, which portion corresponds to the loop of a first or second vibration mode, is reinforced with a rigidity-imparting member; the substrate of the vibrating diaphragm is formed of a resin foam; or the voice coil is formed three-dimensionally.
    Type: Grant
    Filed: February 28, 2003
    Date of Patent: October 16, 2007
    Assignee: The Furukawa Electric Co., Ltd.
    Inventors: Takeshi Nishimura, Kenji Iizuka, Masayuki Ishiwa, Shigeo Yamaguchi, Tsutomu Yokoyama, Masaaki Arahori, Hideharu Yonehara, Hiroshi Ikeda, Sadaaki Sakurai
  • Publication number: 20070190989
    Abstract: A mobile communications system of the present invention obtains in advance information on communications environments in a mobile communications system and provides users with the information on communications environments. The mobile communications system also predicts the movement of users and provides seamless services based on the predictions. A mobile communications system of the present invention includes an information acquisition unit for obtaining information regarding resources of a given object, an information memory for storing the obtained information on resources of a given object, and an information provision unit for searching the information memory in response to a request for provision of the information on resources of a given object transmitted from a mobile communications terminal, and providing the information on resources of a given object found in the search to the mobile communications terminal.
    Type: Application
    Filed: April 18, 2007
    Publication date: August 16, 2007
    Applicant: NTT DoCoMo, Inc
    Inventors: Yoko KIKUTA, Kenji Sakamoto, Tsutomu Yokoyama, Kenichi Yamazaki
  • Publication number: 20070190988
    Abstract: A mobile communications system of the present invention obtains in advance information on communications environments in a mobile communications system and provides users with the information on communications environments. The mobile communications system also predicts the movement of users and provides seamless services based on the predictions. A mobile communications system of the present invention includes an information acquisition unit for obtaining information regarding resources of a given object, an information memory for storing the obtained information on resources of a given object, and an information provision unit for searching the information memory in response to a request for provision of the information on resources of a given object transmitted from a mobile communications terminal, and providing the information on resources of a given object found in the search to the mobile communications terminal.
    Type: Application
    Filed: April 18, 2007
    Publication date: August 16, 2007
    Applicant: NTT DoCoMo, Inc
    Inventors: Yoko Kikuta, Kenji Sakamoto, Tsutomu Yokoyama, Kenichi Yamazaki
  • Patent number: 7257394
    Abstract: A mobile communications system of the present invention obtains in advance information on communications environments in a mobile communications system and provides users with the information on communications environments. The mobile communications system also predicts the movement of users and provides seamless services based on the predictions. A mobile communications system of the present invention includes an information acquisition unit for obtaining information regarding resources of a given object, an information memory for storing the obtained information on resources of a given object, and an information provision unit for searching the information memory in response to a request for provision of the information on resources of a given object transmitted from a mobile communications terminal, and providing the information on resources of a given object found in the search to the mobile communications terminal.
    Type: Grant
    Filed: July 10, 2002
    Date of Patent: August 14, 2007
    Assignee: NTT DoCoMo, Inc.
    Inventors: Yoko Kikuta, Kenji Sakamoto, Tsutomu Yokoyama, Kenichi Yamazaki
  • Patent number: 7142847
    Abstract: The present invention relates to a mobile communication system comprising a structure for realizing “network seamless” for roaming between different kinds of networks, “contents seamless” for converting different kinds of encoding or media therebetween, and “device seamless” for making it possible to utilize optimum I/O devices in conformity to surrounding environments. This mobile communication system detects a change in an environment in use concerning an object such as a mobile terminal, for example, notifies at least one apparatus relating to the change of the result of detection, sets various resources constituting a network in conformity to a new environment, and switches them. This makes it possible to construct a seamless network which automatically eliminates seams (restrictions) concerning changes in the environment and the like.
    Type: Grant
    Filed: August 10, 2001
    Date of Patent: November 28, 2006
    Assignee: NTT DoCoMo, Inc.
    Inventors: Narumi Umeda, Tsutomu Yokoyama, Sadayuki Hongo
  • Publication number: 20060040652
    Abstract: A mobile communications system of the present invention obtains in advance information on communications environments in a mobile communications system and provides users with the information on communications environments. The mobile communications system also predicts the movement of users and provides seamless services based on the predictions. A mobile communications system of the present invention includes an information acquisition unit for obtaining information regarding resources of a given object, an information memory for storing the obtained information on resources of a given object, and an information provision unit for searching the information memory in response to a request for provision of the information on resources of a given object transmitted from a mobile communications terminal, and providing the information on resources of a given object found in the search to the mobile communications terminal.
    Type: Application
    Filed: August 15, 2005
    Publication date: February 23, 2006
    Applicant: NTT DoCoMo, Inc
    Inventors: Yoko Kikuta, Kenji Sakamoto, Tsutomu Yokoyama, Kenichi Yamazaki
  • Publication number: 20050152577
    Abstract: The present invention provides a planer acoustic transducer including a vibrating diaphragm including a spiral voice coil provided on both surfaces or on one surface of an insulating base film; and a permanent magnet corresponding to the voice coil, wherein, in the vibrating diaphragm, the spiral voice coil is formed by applying a wire conductor, in a coil pattern, onto a sheet-like substrate having an adhesive layer on at least one surface thereof. Alternatively, at least a portion of the vibrating diaphragm, which portion corresponds to the loop of a first or second vibration mode, is reinforced with a rigidity-imparting member; the substrate of the vibrating diaphragm is formed of a resin foam; or the voice coil is formed three-dimensionally.
    Type: Application
    Filed: February 28, 2003
    Publication date: July 14, 2005
    Applicant: The FURUKAWA ELECTRIC CO., LTD.
    Inventors: Takeshi Nishimura, Kenji Iizuka, Masayuki Ishiwa, Shigeo Yamaguchi, Tsutomu Yokoyama, Masaaki Arahori, Hideharu Yonehara, Hiroshi Ikeda, Sadaaki Sakurai
  • Publication number: 20030013435
    Abstract: A mobile communications system of the present invention obtains in advance information on communications environments in a mobile communications system and provides users with the information on communications environments. The mobile communications system also predicts the movement of users and provides seamless services based on the predictions.
    Type: Application
    Filed: July 10, 2002
    Publication date: January 16, 2003
    Applicant: NTT DoCoMo, Inc.
    Inventors: Yoko Kikuta, Kenji Sakamoto, Tsutomu Yokoyama, Kenichi Yamazaki
  • Publication number: 20020150228
    Abstract: The present invention relates to a mobile communication system comprising a structure for realizing “network seamless” for roaming between different kinds of networks, “contents seamless” for converting different kinds of encoding or media therebetween, and “device seamless” for making it possible to utilize optimum I/O devices in conformity to surrounding environments. This mobile communication system detects a change in an environment in use concerning an object such as a mobile terminal, for example, notifies at least one apparatus relating to the change of the result of detection, sets various resources constituting a network in conformity to a new environment, and switches them. This makes it possible to construct a seamless network which automatically eliminates seams (restrictions) concerning changes in the environment and the like.
    Type: Application
    Filed: April 10, 2002
    Publication date: October 17, 2002
    Inventors: Narumi Umeda, Tsutomu Yokoyama, Sadayuki Hongo