Patents by Inventor Hirokazu Nakayoshi

Hirokazu Nakayoshi 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: 7456894
    Abstract: An image pickup apparatus includes a case, a photographing optical system, an imaging element, and a viewfinder device. The viewfinder device includes a viewfinder case, a transmission liquid crystal panel, a lighting device, a first sheet polarizer, and a second sheet polarizer. The viewfinder case includes a case body and a case partitioning member. The lighting device and the first sheet polarizer are supported inside the case partitioning member. The transmission liquid crystal panel is supported inside the case partitioning member with the display surface faced to the window. The second sheet polarizer is supported inside the case body.
    Type: Grant
    Filed: December 22, 2005
    Date of Patent: November 25, 2008
    Assignee: Sony Corporation
    Inventors: Kunihito Saiki, Hirokazu Nakayoshi, Toshitake Terada, Shunichi Matsunaga
  • Patent number: 7270464
    Abstract: A back-light device and a liquid crystal display in which light from light sources is guided to a light-guiding plate efficiently and heat of the light sources is dissipated efficiently. The back-light device of the liquid crystal panel has a front frame and a rear frame. There are provided four optical sheets, a light-guiding plate, a flexible PCB, two light sources, and a reflecting sheet between the front frame and the rear frame. The flexible PCB has a PCB part and two erected parts. A resistor and a thermistor as electronic parts and two light sources are installed on the PCB part in the vicinity of the erected parts. A light-radiating surface of the light source is pressed to an incident surface of the light-guiding plate by the erected part.
    Type: Grant
    Filed: December 22, 2003
    Date of Patent: September 18, 2007
    Assignee: Sony Corporation
    Inventors: Hirokazu Nakayoshi, Kazuo Hashimoto, Isamu Noguchi
  • Patent number: 7190355
    Abstract: An input device and an electronic apparatus using such an input device capable of providing visual amusement at the time of operating thereof and allowing the down sizing and thinning are provided. The input device has a reversible chromatic layer exhibiting color change in response to temperature change, and a sheet-type input portion laminated on the reversible chromatic layer and activates ON operation upon being pressed.
    Type: Grant
    Filed: October 15, 2003
    Date of Patent: March 13, 2007
    Assignee: Sony Corporation
    Inventors: Shigeki Motoyama, Hirokazu Nakayoshi, Shun Kayama, Yasuhiro Kataoka, Toshitaka Kawashima, Junichi Ohsako
  • Publication number: 20060170806
    Abstract: An image pickup apparatus includes a case, a photographing optical system, an imaging element, and a viewfinder device. The viewfinder device includes a viewfinder case, a transmission liquid crystal panel, a lighting device, a first sheet polarizer, and a second sheet polarizer. The viewfinder case includes a case body and a case partitioning member. The lighting device and the first sheet polarizer are supported inside the case partitioning member. The transmission liquid crystal panel is supported inside the case partitioning member with the display surface faced to the window. The second sheet polarizer is supported inside the case body.
    Type: Application
    Filed: December 22, 2005
    Publication date: August 3, 2006
    Applicant: Sony Corporation
    Inventors: Kunihito Saiki, Hirokazu Nakayoshi, Toshitake Terada, Shunichi Matsunaga
  • Publication number: 20060152944
    Abstract: It is an object of the present invention to provide a back-light device and a liquid crystal display whose manufacturing costs are low and wherein the light from light sources is guided to a light-guiding plate efficiently and the heat of the light sources is dissipated efficiently. The back-light device (12) of the liquid crystal panel (10) has a front frame (14) and a rear frame (26). There are provided four optical sheets (16), a light-guiding plate (18), a flexible PCB (20), two light sources (22), and a reflecting sheet (24) between the front frame (14) and the rear frame (26). The flexible PCB (20) has a PCB part (2002) and two erected parts (2003). A resistor (2008) and a thermistor (2010) as electronic parts, and two light sources (22) are installed on the PCB part (2002) in the vicinity of the erected parts (2003). A light-radiating surface (2202) of the light source (22) is pressed to an incident surface (1802) of the light-guiding plate (18) by the erected part (2003).
    Type: Application
    Filed: December 22, 2003
    Publication date: July 13, 2006
    Applicant: Sony Corporation
    Inventors: Hirokazu Nakayoshi, Kazuo Hashimoto, Isamu Noguchi
  • Publication number: 20040080490
    Abstract: An input device and an electronic apparatus using such an input device capable of providing visual amusement at the time of operating thereof and allowing the down sizing and thinning are provided. The input device has a reversible chromatic layer exhibiting color change in response to temperature change, and a sheet-type input portion laminated on the reversible chromatic layer and activates ON operation upon being pressed.
    Type: Application
    Filed: October 15, 2003
    Publication date: April 29, 2004
    Inventors: Shigeki Motoyama, Hirokazu Nakayoshi, Shun Kayama, Yasuhiro Kataoka, Toshitaka Kawashima, Junichi Ohsako
  • Patent number: 6690362
    Abstract: An input device and an electronic apparatus using such an input device capable of providing visual amusement at the time of operating thereof and allowing the down sizing and thinning are provided. The input device has a reversible chromatic layer exhibiting color change in response to temperature change, and a sheet-type input portion laminated on the reversible chromatic layer and activates ON operation upon being pressed.
    Type: Grant
    Filed: September 15, 2000
    Date of Patent: February 10, 2004
    Assignee: Sony Corporation
    Inventors: Shigeki Motoyama, Hirokazu Nakayoshi, Shun Kayama, Yasuhiro Kataoka, Toshitaka Kawashima, Junichi Ohsako
  • Patent number: 6518656
    Abstract: An image pickup device is provided with a reduced profile. There is provided a circuit board that is formed with a predetermined circuit pattern having bonding portions and which has a through hole, a pickup element that has a light-receiving portion and bonded portions and which is secured to one surface of the circuit board by bonding the bonded portions to the bonding portions of the circuit pattern, and a cover body which has a lens portion for guiding incident light to the light-receiving portion of the pickup element through the through hole of the circuit board and that is secured to another surface of the circuit board opposite to the above-mentioned surface such that the through hole is covered.
    Type: Grant
    Filed: October 13, 2000
    Date of Patent: February 11, 2003
    Assignee: Sony Corporation
    Inventors: Yoshinori Nakayama, Hirokazu Nakayoshi
  • Publication number: 20020064904
    Abstract: There is provided a connection method of a semiconductor element in which even in the case where a semiconductor element includes a sealing inhibited region, it can be easily electrically connected to a substrate, and thinning and miniaturization can be realized.
    Type: Application
    Filed: January 28, 2002
    Publication date: May 30, 2002
    Inventors: Yoshitaka Yoshino, Hirokazu Nakayoshi
  • Publication number: 20010019179
    Abstract: There is provided a connection method of a semiconductor element in which even in the case where a semiconductor element includes a sealing inhibited region, it can be easily electrically connected to a substrate, and thinning and miniaturization can be realized.
    Type: Application
    Filed: December 27, 2000
    Publication date: September 6, 2001
    Inventors: Yoshitaka Yoshino, Hirokazu Nakayoshi
  • Patent number: 5990936
    Abstract: An imaging system includes left and right display panels arranged so as to be viewed separately by left and right eyes of a viewer. A three dimensional video signal is supplied to a drive circuit for the display panels such that image data from the three dimensional video signal is supplied alternately to the left and right display panels. The display panels are of a memory effect LCD type such that, when no image data is received by the display panel, the image data of the previously received field is maintained on display for providing flickerless imaging.
    Type: Grant
    Filed: March 3, 1994
    Date of Patent: November 23, 1999
    Assignee: Sony Corporation
    Inventors: Hirokazu Nakayoshi, Yoshiki Shirochi, Seizi Sato, Hiroyuki Shiota, Hiroshi Mamiya, Naoki Kamaya
  • Patent number: 5742497
    Abstract: A cold-cathode fluorescent lamp lighting device which enables to perform high-efficiency lighting of a cold-cathode fluorescent lamp.
    Type: Grant
    Filed: September 19, 1996
    Date of Patent: April 21, 1998
    Assignee: Sony Corporation
    Inventors: Kazuo Hashimoto, Hirokazu Nakayoshi
  • Patent number: 5365407
    Abstract: A DC power supply device for use with a video tape recorder with a built-in camera has a plurality of power supply blocks for supplying a plurality of voltages, each of the power supply blocks being composed of a switching circuit for being supplied with a DC voltage and a smoothing circuit connected to an output terminal of the switching circuit. The power supply blocks are mounted on a multilayer circuit board which includes a layer of a ground pattern with an electric conductor extending substantially fully thereover, the ground pattern being separated into a plurality of ground pattern portions by a plurality of recesses defined therein, the power supply blocks having respective ground terminals connected to the ground pattern portions, respectively.
    Type: Grant
    Filed: January 27, 1993
    Date of Patent: November 15, 1994
    Assignee: Sony Corporation
    Inventors: Toshiya Nakabayashi, Hirokazu Nakayoshi, Kazuo Hashimoto
  • Patent number: 5357277
    Abstract: An imaging system comprises left and right display panels arranged so as to be viewed separately by left and right eyes of a viewer. A three dimensional video signal is supplied to a drive circuit for the display panels such that image data from the three dimensional video signal is supplied alternately to the left and right display panels. The display panels are of a memory effect LCD type such that, when no image data is received by the display panel, the image data of the previously received field is maintained on display for providing `flickerless` imaging.
    Type: Grant
    Filed: September 28, 1992
    Date of Patent: October 18, 1994
    Assignee: Sony Coporation
    Inventors: Hirokazu Nakayoshi, Yoshiki Shirochi, Seizi Sato, Hiroyuki Shiota, Hiroshi Mamiya, Naoki Kamaya