Patents by Inventor Keiji Yuyama

Keiji Yuyama 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).

  • Video projector
    Patent number: 8267530
    Abstract: A video projector including a housing which accommodates a component for projecting and displaying a picture. A cable insertion member is fastenable to an antitheft cable. The cable insertion member is retractable into the housing.
    Type: Grant
    Filed: December 3, 2009
    Date of Patent: September 18, 2012
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Keiji Yuyama, Taichi Yoshimura, Yasuyuki Hirouchi
  • VIDEO PROJECTOR
    Publication number: 20100141853
    Abstract: A video projector including a housing which accommodates a component for projecting and displaying a picture. A cable insertion member is fastenable to an antitheft cable. The cable insertion member is retractable into the housing.
    Type: Application
    Filed: December 3, 2009
    Publication date: June 10, 2010
    Applicant: Sanyo Electric Co., Ltd.
    Inventors: Keiji YUYAMA, Taichi Yoshimura, Yasuyuki Hirouchi
  • PROJECTION IMAGE DISPLAY APPARATUS
    Publication number: 20090273759
    Abstract: A projection image display apparatus includes: an image light generator; a projection optics including a reflection mirror; and a polarization adjusting device adjusting image light to light polarized in a direction substantially orthogonal to a vertical plane along with a traveling direction of the image light reflected by the reflection mirror.
    Type: Application
    Filed: April 28, 2009
    Publication date: November 5, 2009
    Applicant: SANYO ELECTRIC CO., LTD.
    Inventors: Naoyuki Ikeda, Ryoko Kubo, Keiji Yuyama, Nobuyuki Ohsumi
  • Electric massager
    Patent number: D590065
    Type: Grant
    Filed: April 11, 2007
    Date of Patent: April 7, 2009
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Keiji Yuyama, Noriyuki Mori
  • Projector
    Patent number: D647941
    Type: Grant
    Filed: November 3, 2010
    Date of Patent: November 1, 2011
    Assignee: Sanyo Electric Co., Ltd.
    Inventor: Keiji Yuyama
  • Projector
    Patent number: D648366
    Type: Grant
    Filed: November 5, 2010
    Date of Patent: November 8, 2011
    Assignee: Sanyo Electric Co., Ltd.
    Inventor: Keiji Yuyama
  • Projector
    Patent number: D688724
    Type: Grant
    Filed: June 8, 2012
    Date of Patent: August 27, 2013
    Assignee: Panasonic Corporation
    Inventors: Takashi Tsukahara, Sadayoshi Azuma, Keiji Yuyama, Ippei Ohashi, Hiroshi Chino, So Suzuki, Takanori Kawasaki, Daisuke Matsumoto
  • Projector
    Patent number: D691188
    Type: Grant
    Filed: May 22, 2012
    Date of Patent: October 8, 2013
    Assignee: Sanyo Electric Co., Ltd.
    Inventor: Keiji Yuyama
  • Remote controller for projector
    Patent number: D710331
    Type: Grant
    Filed: April 7, 2014
    Date of Patent: August 5, 2014
    Assignee: Panasonic Corporation
    Inventors: Keiji Yuyama, Takashi Tsukahara, Ippei Ohashi
  • Projector
    Patent number: D727998
    Type: Grant
    Filed: April 25, 2014
    Date of Patent: April 28, 2015
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventor: Keiji Yuyama
  • Projector
    Patent number: D727999
    Type: Grant
    Filed: April 25, 2014
    Date of Patent: April 28, 2015
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Keiji Yuyama, Takashi Tsukahara, Toshihiro Nakashima
  • Projector
    Patent number: D730427
    Type: Grant
    Filed: April 24, 2014
    Date of Patent: May 26, 2015
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Ippei Ohashi, Takashi Tsukahara, Keiji Yuyama
  • Projector
    Patent number: D740877
    Type: Grant
    Filed: June 24, 2014
    Date of Patent: October 13, 2015
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventor: Keiji Yuyama
  • Projector
    Patent number: D775681
    Type: Grant
    Filed: January 19, 2016
    Date of Patent: January 3, 2017
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Keiji Yuyama, Takashi Tsukahara
  • Projector
    Patent number: D799579
    Type: Grant
    Filed: October 13, 2016
    Date of Patent: October 10, 2017
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventor: Keiji Yuyama
  • Projector
    Patent number: D803928
    Type: Grant
    Filed: October 14, 2016
    Date of Patent: November 28, 2017
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventor: Keiji Yuyama
  • Projector
    Patent number: D822752
    Type: Grant
    Filed: August 30, 2017
    Date of Patent: July 10, 2018
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventor: Keiji Yuyama
  • Projector
    Patent number: D870798
    Type: Grant
    Filed: October 29, 2018
    Date of Patent: December 24, 2019
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Keiji Yuyama, Takashi Koyama, So Suzuki
  • Projector
    Patent number: D901576
    Type: Grant
    Filed: June 6, 2019
    Date of Patent: November 10, 2020
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventor: Keiji Yuyama
  • Projector
    Patent number: D944882
    Type: Grant
    Filed: July 21, 2020
    Date of Patent: March 1, 2022
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventor: Keiji Yuyama