Patents by Inventor Jin Matsushima

Jin Matsushima 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: 20070291370
    Abstract: In a formation method for forming a fine structure in a workpiece (30) containing an etching control component, using an isotropic etching process, a mask (32, 34) having an opening (36) is applied to the workpiece, and the workpiece is etched with an etching solution (38) to thereby form a recess (40), corresponding to a shape of the opening, in a surface of the workpiece. The etching of the workpiece is stopped due to the etching control component eluted out of the workpiece in the etching solution within the recess during the isotropic etching process.
    Type: Application
    Filed: August 23, 2007
    Publication date: December 20, 2007
    Applicant: NEC CORPORATION
    Inventors: Shinichi UEHARA, Yuko Sato, Ken Sumiyoshi, Setsuo Kaneko, Jin Matsushima
  • Patent number: 7310127
    Abstract: An LCD device in an LCD projector includes a TFT substrate, a counter substrate, an LC layer sandwiched between the TFT substrate and the counter substrate, and a pair of compensation substrates attached onto the outer surfaces of the TFT substrate and the counter substrate far from the LC layer. The compensation substrate has a negative coefficient of thermal expansion (CTE) for compensating the retardation caused by a temperature rise of the TFT substrate and the counter substrate due to irradiation thereof by a light source.
    Type: Grant
    Filed: July 29, 2004
    Date of Patent: December 18, 2007
    Assignee: NEC Corporation
    Inventors: Yuko Sato, Jin Matsushima, Mitsuhiro Sugimoto, Ken Sumiyoshi
  • Publication number: 20070222927
    Abstract: To provide a liquid crystal panel capable of realizing excellent display performance using a circular polarizing plate therein, and a liquid crystal display device and a terminal device using the same, with respect to a semi-transmission type liquid crystal display device in a horizontal electric field mode (In-Plane Switching: IPS). A viewer-side circular polarizing plate and a backside circular polarizing plate are disposed outside of a viewer-side substrate and a backside substrate respectively, and a viewer-side compensation plate and a backside compensation plate are disposed between the respective polarizing plates and substrates to reduce a refractive index anisotropy of a liquid crystal layer.
    Type: Application
    Filed: March 22, 2007
    Publication date: September 27, 2007
    Applicants: NEC CORPORATION, NEC LCD TECHNOLOGIES, LTD.
    Inventors: Shinichi UEHARA, Jin MATSUSHIMA, Ken SUMIYOSHI
  • Publication number: 20070146261
    Abstract: A liquid crystal display element accommodates a reflective portion provided with a concavo-convex reflecting pixel electrode for reflecting incident light from the display face side and displaying information, and a transmissive portion provided with a transmissive pixel electrode for transmitting light that is output from the backlight. The voltages applied to the reflective portion and the transmissive portion are controlled independently. The reflective portion and the transmissive portion have wide viewing angle characteristics. In a wide viewing angle region greater than a certain angle, the luminance of the reflective portion is greater than the luminance of the transmissive portion, whereas in other angle regions the luminance of the transmissive portion is greater than the luminance of the reflective portion.
    Type: Application
    Filed: December 21, 2006
    Publication date: June 28, 2007
    Inventors: Jin Matsushima, Hiroshi Okumura, Ken Sumiyoshi
  • Publication number: 20070002226
    Abstract: An IPS-mode transflective LCD device includes an array of pixels each including a reflective region and a transmissive region juxtaposed. The reflective region operates in a normally-white mode, and the transmissive region operates in a normally-black mode. A common data signal is supplied to the reflective region and transmissive region, whereas the common electrode signal in the transmissive region is an inverted signal of the common electrode signal in the reflective region, to thereby obtain similar gray-scale levels.
    Type: Application
    Filed: June 29, 2006
    Publication date: January 4, 2007
    Inventors: Michiaki Sakamoto, Jin Matsushima, Hiroshi Nagai, Kenichi Mori, Hidenori Ikeno, Yasuki Kudo, Ken Sumiyoshi
  • Publication number: 20060209000
    Abstract: A Liquid Crystal Display (LCD), a backlight used for the LCD and a method for producing the LCD and the backlight are provided which are capable of inhibiting an increase in component counts and in assembling processes and of reducing them, thereby achieving low costs. A display image is obtained by arranging a backlight section being able to perform scanning as a single unit in a manner that it positionally matches a liquid crystal displaying section. The backlight section is provided with a plurality of scanning electrodes and light emitting layers each providing a different luminescent color, and being spatially separated from each other on a principal face of the backlight and scanning is performed on a plurality of light emitting layers providing a different luminescent color.
    Type: Application
    Filed: November 14, 2005
    Publication date: September 21, 2006
    Inventors: Ken Sumiyoshi, Toshihiro Yoshioka, Hiroshi Hayama, Jin Matsushima
  • Publication number: 20050024576
    Abstract: An LCD device in an LCD projector includes a TFT substrate, a counter substrate, an LC layer sandwiched between the TFT substrate and the counter substrate, and a pair of compensation substrates attached onto the outer surfaces of the TFT substrate and the counter substrate far from the LC layer. The compensation substrate has a negative coefficient of thermal expansion (CTE) for compensating the retardation caused by a temperature rise of the TFT substrate and the counter substrate due to irradiation thereof by a light source.
    Type: Application
    Filed: July 29, 2004
    Publication date: February 3, 2005
    Inventors: Yuko Sato, Jin Matsushima, Mitsuhiro Sugimoto, Ken Sumiyoshi
  • Publication number: 20030228759
    Abstract: In a formation method for forming a fine structure in a workpiece containing an etching control component, using an isotropic etching process, a mask having an opening is applied to the workpiece, and the workpiece is etched with an etching solution to thereby form a recess, corresponding to a shape of the opening, in a surface of the workpiece. The etching of the workpiece is stopped due to the etching control component eluted out of the workpiece in the etching solution within the recess during the isotropic etching process.
    Type: Application
    Filed: April 10, 2003
    Publication date: December 11, 2003
    Inventors: Shinichi Uehara, Yuko Sato, Ken Sumiyoshi, Setsuo Kaneko, Jin Matsushima
  • Publication number: 20030122771
    Abstract: A Liquid Crystal Display (LCD), a backlight used for the LCD and a method for producing the LCD and the backlight are provided which are capable of inhibiting an increase in component counts and in assembling processes and of reducing them, thereby achieving low costs. A display image is obtained by arranging a backlight section being able to perform scanning as a single unit in a manner that it positionally matches a liquid crystal displaying section. The backlight section is provided with a plurality of scanning electrodes and light emitting layers each providing a different luminescent color, and being spatially separated from each other on a principal face of the backlight and scanning is performed on a plurality of light emitting layers providing a different luminescent color.
    Type: Application
    Filed: October 23, 2002
    Publication date: July 3, 2003
    Applicant: NEC Corporation
    Inventors: Ken Sumiyoshi, Toshihiro Yoshioka, Hiroshi Hayama, Jin Matsushima
  • Patent number: 6245258
    Abstract: A smectic liquid crystal material which comprises (1) an antiferroelectric liquid crystal material and/or a liquid crystal material ferroelectric phase and (2) a liquid crystal material having a smectic C phase. The smectic liquid crystal material may be used in a liquid crystal optical element having a spontaneous polarization of 0.06 nC/cm2 to 96 nC/cm2. The smectic material has a low spontaneous polarization value and the curve of light transmittance to applied voltage for the smectic material has a V-shaped characteristic.
    Type: Grant
    Filed: April 13, 1998
    Date of Patent: June 12, 2001
    Assignee: NEC Corporation
    Inventors: Ken-Ichi Takatori, Ken Sumiyoshi, Yoriko Hatada, Jin Matsushima