Patents by Inventor Jiro Nagaoka

Jiro Nagaoka 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).

  • METHOD FOR PRODUCING COMPOUND HAVING CHALCOPYRITE STRUCTURE
    Publication number: 20130280855
    Abstract: To obtain high-quality chalcopyrite particles having a small particle size using a relatively inexpensive raw material in a simple and easy process in which complicated equipment (such as vacuum equipment) is not necessary. Provided is a method for producing a compound having a chalcopyrite structure represented by a compositional formula: ABC2, the method including: a step of dissolving a Group 11 element A, a Group 13 element B, and a Group 16 element C of the periodic table in a solvent to prepare a solution; and a step of contacting the solution with a reducing agent.
    Type: Application
    Filed: December 28, 2010
    Publication date: October 24, 2013
    Applicant: TOHOKU SEIKI INDUSTRIES, CO., LTD.
    Inventors: Koji Moriya, Jiro Nagaoka, Yoshinobu Takano, Yuuki Sano, Keitaro Harada, Masayoshi Yokoo
  • Noncontact IC medium and system using the same
    Patent number: 7051933
    Abstract: There is provided a cellular phone radio that is capable of utilizing a contactless IC media. A contactless IC media 20b is molded in the form of a coin and interchangeably born by a cellular phone radio 110. The cellular phone radio 110 includes a media holder 111, a radio transceiver circuit having an antenna 112, and a control circuit that conducts the read control and the write control of digital information with respect to both recording regions of a contactless IC media 20b within the media holder 111 and an external contactless IC media 20a, ICC, and also includes a processor that conducts information processing on the basis of the read digital information as occasion demands.
    Type: Grant
    Filed: August 30, 1999
    Date of Patent: May 30, 2006
    Assignees: C.media Co., Ltd., Itochu Corporation
    Inventors: Jiro Nagaoka, Satoki Nakajima
  • Contactless IC media and system applying the same
    Publication number: 20040245348
    Abstract: There is provided a cellular phone radio that is capable of utilizing a contactless IC media. A contactless IC media 20b is molded in the form of a coin and interchangeably born by a cellular phone radio 110. The cellular phone radio 110 includes a media holder 111, a radio transceiver circuit having an antenna 112, and a control circuit that conducts the read control and the write control of digital information with respect to both recording regions of a contactless IC media 20b within the media holder 111 and an external contactless IC media 20a, ICC, and also includes a processor that conducts information processing on the basis of the read digital information as occasion demands.
    Type: Application
    Filed: June 2, 2004
    Publication date: December 9, 2004
    Inventors: Jiro Nagaoka, Satoki Nakajima
  • Stopper mechanism in a floppy disc apparatus
    Patent number: 5654852
    Abstract: In a transportation or in an accident, the carriage of a floppy disc apparatus has a chance to collide with the stopper mechanism of the apparatus. A shock absorbing mechanism is provided in the stopper mechanism to avoid damage from the shock.
    Type: Grant
    Filed: March 13, 1995
    Date of Patent: August 5, 1997
    Assignee: NEC Corporation
    Inventors: Takamasa Kitano, Jiro Nagaoka