Patents by Inventor Toshikazu Yamaguchi

Toshikazu Yamaguchi 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).

  • Publication number: 20220014301
    Abstract: When a first connection number of a b-th output port in an a-th wavelength selective switch connected to paths in one side out of a Drop side and an Add side is expressed by f(a, b, k), and a second connection number of a d-th output port in a c-th wavelength selective switch connected to paths in the other side out of the Drop side and the Add side is expressed by g(c, d, k), f(a, b, k)?g(c, d, k).
    Type: Application
    Filed: November 13, 2019
    Publication date: January 13, 2022
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Kazunori SENOO, Kenya SUZUKI, Keita YAMAGUCHI, Takayuki MIZUNO, Hirotaka ONO, Toshikazu HASHIMOTO, Yutaka MIYAMOTO
  • Patent number: 11211461
    Abstract: A semiconductor device having favorable electrical characteristics is provided. The semiconductor device includes an oxide semiconductor, a first insulator in contact with the oxide semiconductor, and a second insulator in contact with the first insulator. The first insulator includes excess oxygen. The second insulator has a function of trapping or fixing hydrogen. Hydrogen in the oxide semiconductor is bonded to the excess oxygen. The hydrogen bonded to the excess oxygen passes through the first insulator and is trapped or fixed in the second insulator. The excess oxygen bonded to the hydrogen remains in the first insulator as the excess oxygen.
    Type: Grant
    Filed: November 25, 2019
    Date of Patent: December 28, 2021
    Inventors: Shunpei Yamazaki, Daisuke Yamaguchi, Shinobu Kawaguchi, Yoshihiro Komatsu, Toshikazu Ohno, Yasumasa Yamane, Tomosato Kanagawa
  • Publication number: 20140066471
    Abstract: Disclosed is an external preparation composition having good transdermal absorbability. An external preparation composition having excellent transdermal absorbability can be produced by dissolving a medicinal substance or a salt thereof in a fatty acid-based ionic liquid to form a composite ionic composition of the medicinal substance. The external preparation composition can be used as a liquid preparation, an ointment, a cream, a plaster or the like, and enables to provide a preparation having excellent transdermal absorbability.
    Type: Application
    Filed: November 6, 2013
    Publication date: March 6, 2014
    Applicant: MEDRX CO., LTD.
    Inventors: Toshikazu YAMAGUCHI, Kenta KAWAI, Katsuhiro YAMANAKA, Noboru TATSUMI
  • Patent number: 8623387
    Abstract: Disclosed is an external preparation composition having good transdermal absorbability. An external preparation composition having excellent transdermal absorbability can be produced by dissolving a medicinal substance or a salt thereof in a fatty acid-based ionic liquid to form a composite ionic composition of the medicinal substance. The external preparation composition can be used as a liquid preparation, an ointment, a cream, a plaster or the like, and enables to provide a preparation having excellent transdermal absorbability.
    Type: Grant
    Filed: November 20, 2008
    Date of Patent: January 7, 2014
    Assignee: Medrx Co., Ltd.
    Inventors: Toshikazu Yamaguchi, Kenta Kawai, Katsuhiro Yamanaka, Noboru Tatsumi
  • Patent number: 8251136
    Abstract: A control device accommodating unit (15) is provided in a section (50) accommodating an indoor air blower (7) adjacently to an indoor air flow-in port (16), and an impeller (7c) of the indoor air blower (7) is sequentially opposite to the indoor air flow-in port (16) and the control device accommodating unit (15) by rotation of the impeller (7c), and a space (51) is formed between the indoor air flow-in port (16) and the control device accommodating unit (15). In this configuration, it is possible to obtain a cooling device decreased in drop of air flow rate and drop of cooling performance due to mounting a control device (14).
    Type: Grant
    Filed: March 12, 2008
    Date of Patent: August 28, 2012
    Assignee: Panasonic Corporation
    Inventors: Hiroshi Shibata, Nobuyuki Yasui, Mutsuhiko Matsumoto, Kouji Sinzaki, Toshikazu Yamaguchi, Naoyuki Funada, Keisuke Tuzi, Takahiro Sahasi, Satoshi Ousaka, Keisuke Hagimoto
  • Publication number: 20100256174
    Abstract: Disclosed is an external preparation composition having good transdermal absorbability. An external preparation composition having excellent transdermal absorbability can be produced by dissolving a medicinal substance or a salt thereof in a fatty acid-based ionic liquid to form a composite ionic composition of the medicinal substance. The external preparation composition can be used as a liquid preparation, an ointment, a cream, a plaster or the like, and enables to provide a preparation having excellent transdermal absorbability.
    Type: Application
    Filed: November 20, 2008
    Publication date: October 7, 2010
    Inventors: Toshikazu Yamaguchi, Kenta Kawai, Katsuhiro Yamanaka, Noboru Tatsumi
  • Publication number: 20100218919
    Abstract: A control device accommodating unit (15) is provided in a section (50) accommodating an indoor air blower (7) adjacently to an indoor air flow-in port (16), and an impeller (7c) of the indoor air blower (7) is sequentially opposite to the indoor air flow-in port (16) and the control device accommodating unit (15) by rotation of the impeller (7c), and a space (51) is formed between the indoor air flow-in port (16) and the control device accommodating unit (15). In this configuration, it is possible to obtain a cooling device decreased in drop of air flow rate and drop of cooling performance due to mounting a control device (14).
    Type: Application
    Filed: March 12, 2008
    Publication date: September 2, 2010
    Applicant: PANASONIC CORPORATION
    Inventors: Hiroshi Shibata, Nobuyuki Yasui, Mutsuhiko Matsumoto, Kouji Sinzaki, Toshikazu Yamaguchi, Naoyuki Funada, Keisuke Tuzi, Takahiro Sahasi, Satoshi Ousaka, Keisuke Hagimoto
  • Publication number: 20090139261
    Abstract: There is provided a cooler for heater-containing box in which an outside air fan for carrying air on an outside air path and an inside air fan for carrying air on an inside air path are arranged such that a rotating shaft of each fan is in parallel with an air intake direction, and a heat exchanger for exchanging sensible heat of outside air and inside air is arranged between the outside air path and the inside air path such that a suction port at a longitudinal air-path side of the heat exchanger is aligned with a blowout port of the fan. The cooler for heater-containing box capable of making the depth thinner can be provided.
    Type: Application
    Filed: September 20, 2006
    Publication date: June 4, 2009
    Inventors: Yuuji Nakano, Keisuke Hagimoto, Naoyuki Funada, Toshikazu Yamaguchi, Mutsuhiko Matsumoto, Kazuki Saishu, Hiroshi Shibata
  • Publication number: 20090101304
    Abstract: A heat exchange type cooling device includes an enclosure, an inside-air passage allowing inside air in the inside of the enclosure to flow through the inside-air passage and returning the flowing inside air to the inside, an outside-air passage allowing outside air at the outside of the enclosure to flow through the outside-air passage and returning the flowing outside air to the outside, an inside-air blower sending the inside air to the inside-air passage, an outside-air blower sending the outside air to the outside-air passage, a heat-exchanging element exchanging heat between the outside air flowing through the outside-air passage and the inside air flowing through the inside-air passage, and a heater for heating the inside air. The outside-air passage is independent from the inside-air passage. The heater is provided upstream of the heat-exchanging element in the inside-air passage.
    Type: Application
    Filed: September 12, 2006
    Publication date: April 23, 2009
    Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
    Inventors: Naoyuki Funada, Yuuji Nakano, Keisuke Hagimoto, Toshikazu Yamaguchi, Mutsuhiko Matsumoto, Kazuki Saishu, Hiroshi Shibata
  • Patent number: 5604807
    Abstract: A cipher communication system and scheme capable of realizing the cipher communication without affecting the already existing application programs and hardware, and establishing a synchronization at the start and end of the cipher communication. In the cipher communication, the session key generated by the key distribution center are obtained and shared at the first and second terminals at a timing of a request for establishing a cipher communication session between the first and second terminals, and then the cipher communication between the first and second terminals is carried out by using the shared session key.
    Type: Grant
    Filed: April 20, 1995
    Date of Patent: February 18, 1997
    Assignee: Nippon Telegraph and Telephone Corporation
    Inventors: Toshikazu Yamaguchi, Kiyoto Tanaka
  • Patent number: 5600722
    Abstract: A cipher communication system and scheme capable of realizing the cipher communication without affecting the already existing application programs and hardware, and establishing a synchronization at the start and end of the cipher communication. In the cipher communication, the session key generated by the key distribution center are obtained and shared at the first and second terminals at a timing of a request for establishing a cipher communication session between the first and second terminals, and then the cipher communication between the first and second terminals is carried out by using the shared session key.
    Type: Grant
    Filed: October 6, 1994
    Date of Patent: February 4, 1997
    Assignee: Nippon Telegraph & Telephone Corp.
    Inventors: Toshikazu Yamaguchi, Kiyoto Tanaka