Patents by Inventor Hiroshi Nagai

Hiroshi Nagai 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: 20090051861
    Abstract: An in-plane-switching-mode (IPS) LCD device includes a TFT substrate and a CF substrate sandwiching therebetween an LC layer, and a pair of polarizing films sandwiching therebetween the substrates and the LC layer. Each polarizing film has a polarization layer and a protective layer. An optical compensation layer having a birefringence is disposed between the light-emitting-side polarizing film and the CF substrate. The optical compensation layer has an in-plane retardation of N1 satisfying the following relationship: 83.050?0.8101×D1?N1?228.09?0.74D1 in the range of 0<D1?80 ?m, wherein D1 is the thickness of the protective layer of the light-incident-side polarizing film.
    Type: Application
    Filed: October 28, 2008
    Publication date: February 26, 2009
    Inventors: Hiroshi Nagai, Hidenori Ikeno
  • Publication number: 20090009447
    Abstract: An LCD device has a reflective area that reflects light incident from a polarizing film side using a reflection film, and a transmissive area that transmits light of a backlight incident from a TFT substrate side. The drive voltages of the reflective area and transmissive area are Vr and Vt, the black voltage in the reflective area is Vr (K), the black voltage in the transmissive area is Vt (K). The reflectance R, the transmittance T, characteristics of R with respect to drive voltage [Vr(K)-Vr] and characteristics of T with respect to drive voltage [Vt-Vt (K)] substantially match each other.
    Type: Application
    Filed: January 9, 2008
    Publication date: January 8, 2009
    Applicant: NEC LCD TECHNOLOGIES, LTD.
    Inventors: Kenichirou NAKA, Michiaki SAKAMOTO, Kenichi MORI, Hiroshi NAGAI
  • Patent number: 7474374
    Abstract: An in-plane-switching-mode (IPS) LCD device includes a TFT substrate and a CF substrate sandwiching therebetween a liquid crystal (LC) layer, and a pair of polarizing films sandwiching therebetween the TFT and CF substrates and LC layer. The TFT substrate includes a SiNx insulation layer having a higher refractive index compared to the TFT substrate and LC layer. The thickness (d) of the SiNx layer is expressed by d=(100+170×k)±30 where k is an integer not smaller than zero and not larger than 5. The protective layer of the light-incident-side polarizing film near the insulation film has a thickness larger than zero and not larger than 57 ?m.
    Type: Grant
    Filed: December 21, 2004
    Date of Patent: January 6, 2009
    Assignee: NEC LCD Technologies, Ltd.
    Inventors: Hiroshi Nagai, Hidenori Ikeno
  • Publication number: 20080297712
    Abstract: An IPS-LCD device includes TFT and CF (color filter) substrates sandwiching therebetween an LC layer, first and second polarizing films sandwiching therebetween the pair of substrates, an optical compensation film having a negative single-axis optical anisotropy and sandwiched between the TFT substrate and the first polarizing film, and a second optical compensation film having a two-axis optical anisotropy and sandwiched between the CF substrate and the second polarizing film. The retardation I1 of the first optical compensation film and the retardation I2 of the second optical compensation film satisfy the following relationships: either 240 nm?I1?425 nm; and 200 nm?I2?(0.75×I1+61)nm, or 500 nm?I1?730 nm; and (0.60×I1?272)nm?I2?1830 nm.
    Type: Application
    Filed: July 1, 2005
    Publication date: December 4, 2008
    Inventors: Hiroshi Nagai, Hidenori Ikeno
  • Patent number: 7460198
    Abstract: An in-plane-switching-mode (IPS) LCD device includes a TFT substrate and a CF substrate sandwiching therebetween an LC layer, and a pair of polarizing films sandwiching therebetween the substrates and the LC layer. Each polarizing film has a polarization layer and a protective layer An optical compensation layer having a birefringence is disposed between the light-emitting-side polarizing film and the CF substrate. The optical compensation layer has an in-plane retardation of N1 satisfying the following relationship: 83.050?0.810×D1?N1??228.090?0.74D1 in the range of 0<D1?80 ?m, wherein D1 is the thickness of the protective layer of the light-incident-side polarizing film.
    Type: Grant
    Filed: December 8, 2004
    Date of Patent: December 2, 2008
    Assignee: NEC LCD Technologies, Ltd.
    Inventors: Hiroshi Nagai, Hidenori Ikeno
  • Publication number: 20080284928
    Abstract: A liquid crystal display device includes an array of pixels each including a plurality of sub-pixels, a plurality of pixel electrodes disposed in the respective sub-pixels, and a plurality of common electrodes disposed in the respective sub-pixels. The common electrode disposed in each of the sub-pixels in one of the pixels on each row is connected to the common electrodes disposed in the corresponding sub-pixels in the others of the pixels on the each row, to form a group of common electrodes connected together.
    Type: Application
    Filed: May 16, 2008
    Publication date: November 20, 2008
    Applicant: NEC LCD TECHNOLOGIES, LTD
    Inventors: Michiaki SAKAMOTO, Kenichi MORI, Kenichirou NAKA, Hiroshi NAGAI
  • Patent number: 7443473
    Abstract: An LCD device includes first and second compensation polarizing films sandwiching therebetween a homogeneously-oriented liquid crystal layer. The first compensation polarizing film includes a polarizing film having an in-plane retardation of 35 to 245 nm, wherein n1?nz>n2, wherein n1 and n2 are refractive indexes of optical axes extending perpendicular to each other within the first retardation film and nz is a thickness-direction refractive index of the first retardation film. The second compensation polarizing film has a protection layer, a polarizing film and a retardation film having an in-plane retardation of 0 to 10 nm and thickness-direction retardation of 0 to 35 nm.
    Type: Grant
    Filed: January 31, 2006
    Date of Patent: October 28, 2008
    Assignee: NEC LCD Technologies, Ltd.
    Inventor: Hiroshi Nagai
  • Publication number: 20080252803
    Abstract: To increase the aperture ratio of a transflective liquid crystal display device and suppress a light leakage. Provided is a transflective liquid crystal display device that includes: within a unit pixel, a reflective area including a pixel electrode and a common electrode as a pair and a reflector, and a transmissive area including a pixel electrode and a common electrode as a pair; a liquid crystal layer provided to the reflective area and the transmissive area; storage capacitances for the reflective area and the transmissive area provided in a lower layer of the reflector for changing a potential of the pixel electrode by following a potential of the common electrode; and a suppressing device for suppressing a light leakage in the liquid crystal layer when the pixel electrode is affected by a potential of the reflector due to capacitance coupling generated between the reflector and the pixel electrode.
    Type: Application
    Filed: April 8, 2008
    Publication date: October 16, 2008
    Applicant: NEC LCD TECHNOLOGIES, LTD.
    Inventors: Kenichi Mori, Michiaki Sakamoto, Hiroshi Nagai, Kenichirou Naka
  • Publication number: 20080239178
    Abstract: A transflective LCD includes a LC layer sandwiched between a pair of substrates, and a pair of polarizing films. The LCD device includes a reflection area and a transmission area in each pixel, the transmission area having a reflection film. A retardation film has a first portion in the refection area between the reflection film and the LC layer, and a second portion in the transmission area between the LC layer and the rear polarizing film. The retardation film has a slow axis perpendicular to an initial orientation direction of the LC molecules upon absence of an applied voltage and perpendicular or parallel to the optical axis of the front polarizing film. The orientation of the LC molecules upon display of a dark state has a direction different between the reflection area and the transmission area.
    Type: Application
    Filed: April 1, 2008
    Publication date: October 2, 2008
    Applicant: NEC LCD Technologies, Ltd.
    Inventors: Hiroshi Nagai, Michiaki Sakamoto, Kenichirou Naka, Kenichi Mori
  • Publication number: 20080170189
    Abstract: An LCD device includes a reflective area in each pixel. A reflection film having a convex-concave surface is provided in the reflective area, film in cross section configuration is formed. Each pixel includes a pixel electrode and a common electrode for applying a lateral electric field on a LC layer. The inclination angle of the reflection film has an inclination angle distribution, wherein the angle component in an area corresponding to the electrodes has a lower angle distribution than the angle components in an area corresponding to a gap between adjacent two of the electrodes.
    Type: Application
    Filed: January 15, 2008
    Publication date: July 17, 2008
    Applicant: NEC LCD TECHNOLOGIES, LTD.
    Inventors: Kenichirou NAKA, Michiaki SAKAMOTO, Hiroshi NAGAI, Kenichi MORI
  • Publication number: 20070279559
    Abstract: To provide a transflective liquid crystal display apparatus that employs in-plane switching mode (in-plane switching system), which exhibits a reflection property of wide view angles. Provided is a transflective liquid crystal display apparatus which comprises: a reflective area and a transmissive area; an uneven reflective plate provided in the reflective area; a flattening film laminated on the uneven reflective plate; and common electrodes and pixel electrodes arranged on the flattening film, wherein, the uneven reflective plate comprises a diffusive reflecting function that is capable of diffusely reflecting light making incident at an incident angle of 30 degrees towards directions at exit angles of 0-10 degrees, and a surface of the flattening film is set to be substantially flat.
    Type: Application
    Filed: May 31, 2007
    Publication date: December 6, 2007
    Applicant: NEC LCD TECHNOLOGIES, LTD.
    Inventors: Kenichi Mori, Michiaki Sakamoto, Daisuke Inoue, Kenichirou Naka, Hiroshi Nagai
  • Patent number: 7282577
    Abstract: Hemolytic proteins offer new approaches to drug development. The hemolytic proteins are obtained from a nematocyst of Carybdea alata. Alternatively, the proteins may be recovered from cultured cells transfected with the sequence encoding the hemolytic protein of Carybdea alata.
    Type: Grant
    Filed: December 30, 2004
    Date of Patent: October 16, 2007
    Assignee: Suntory Limited
    Inventors: Hiroshi Nagai, Kyoko Kuroda, Terumi Nakajima
  • Publication number: 20070211198
    Abstract: A LCD device has a LC layer sandwiched between a TFT substrate and a counter substrate, first and second polarizing films, a first ?/2 film between the first polarizing film and the counter substrate, and a second ?/2 film between the second polarizing film and the TFT substrate. Angle ?1 between the direction of the optical axis of the LC layer and the polarized direction of the light entering the LC layer satisfies the relationship: 0 degree<?1<45 degrees. The resultant LCD device has lower leakage light and coloring.
    Type: Application
    Filed: March 6, 2007
    Publication date: September 13, 2007
    Inventors: Hiroshi Nagai, Michiaki Sakamoto, Kenichi Mori, Kenichirou Naka, Hidenori Ikeno
  • Patent number: 7250491
    Abstract: Novel proteins providing the new approach to development of the drugs and pesticides with the use or application of a hemolytic activity, and novel proteins having the following properties and the genes encoding thereof are provided: (1) having hemolytic activity; (2) having a molecular weight of about 50,000 Da (determined by SDS gel electrophoresis); (3) having an amino acid sequence represented by any of SEQ ID NO 1 to SEQ ID NO 3 as a partial amino acid sequence; and (4) having an amino acid sequence represented by SEQ ID NO 5 as the full amino acid sequence.
    Type: Grant
    Filed: August 29, 2003
    Date of Patent: July 31, 2007
    Assignee: Suntory Limited
    Inventors: Hiroshi Nagai, Terumi Nakajima
  • Patent number: 7237905
    Abstract: In an LCD projector or other projection type display apparatus which uses a lamp such as a xenon lamp for a light source, the lamp is cooled efficiently without increasing ambient noises or without causing the whole apparatus to become large-sized, and at the same time the lifetime and the reliability of a fan which cools the lamp is made improved. When fans 3 and 4 which are disposed on a front side of the lamp mounted with a heat sink 1 rotate, external air of ordinary temperature is taken inlet and guided into ducts 5 and 6 so as to be blown onto the front face of the lamp by means of the fans 3 and 4. Then, high temperature air which was warmed by being blown onto the lamp is exhausted from an outlet to the outside.
    Type: Grant
    Filed: July 8, 2004
    Date of Patent: July 3, 2007
    Assignee: Sony Corporation
    Inventors: Akihito Yajima, Hiroshi Nagai, Masami Sato, Yuji Kawasaki, Daisuke Shirato, Yoshihiko Okamura, Dai Yoneya, Takuji Ohkubo
  • Publication number: 20070128299
    Abstract: Functional beverages and compositions are provided that suppress allergic rhinitis and prevent and treat hyperlipemia and related diseases thereof i.e. arteriosclerosis, obesity and liver diseases. The O-methylated catechin expressed by the chemical formula (1) shown below is included in a constitutive effective amount as an allergic rhinitis-suppressing drug and a lipid-lowering drug; [in which R1, R2, R3 and R4 are each independently a hydrogen atom or a methyl group, X1 and X2 are each independently a hydrogen atom or a hydroxy group.
    Type: Application
    Filed: February 4, 2005
    Publication date: June 7, 2007
    Applicant: ASAHI SOFT DRINKS CO., LTD.
    Inventors: Hiroshi Nagai, Masaaki Yasue, Mari Yamamoto
  • Publication number: 20070077936
    Abstract: A setting unit sets a specified time serving as a clear-to-send time, during which a two-way frame transmission is possible between a local wireless base station and a wireless terminal station accommodated in the wireless base station, and as a wireless-channel reservation time used for a frame transmission between the wireless base station and the wireless terminal station, and wireless terminal station specifying information for specifying a wireless terminal station to which the specified time is applied, in a transmission control frame. A transmitting unit transmits the transmission control frame to the wireless terminal station.
    Type: Application
    Filed: June 29, 2004
    Publication date: April 5, 2007
    Applicant: MITSUBISHI DENKI KABUSHIKI KAISHA
    Inventors: Toshiaki Tomisawa, Hiroshi Nagai, Toshihiko Shirokura
  • Publication number: 20070058120
    Abstract: A LCD device includes a pair of polarizing films sandwiching therebetween a LC cell. The light-incident-side polarizing film includes a polarizing layer and a first retardation film, whereas the light-emitting-side polarizing film includes a polarizing layer and second and third retardation films. A specific combination of the first and third retardation films provides an optical compensation for achieving a lower leakage light and a lower chromaticity shift upon display of a dark state in the LCD device.
    Type: Application
    Filed: September 12, 2006
    Publication date: March 15, 2007
    Inventor: Hiroshi Nagai
  • 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: 20060209004
    Abstract: An LCD device includes an LC panel, and a backlight unit having a backlight source and a luminous intensity control unit. The backlight source has a peak luminous intensity in each of wavelength ranges corresponding to red, green and blue colors. The luminous intensity control unit controls the peak luminous intensity of the wavelength range corresponding to the blue color at a lower gray scale level of the LCD unit to be lower than that at a higher gray scale level, to thereby prevent the chromaticity on the screen from shifting toward blue color.
    Type: Application
    Filed: December 8, 2005
    Publication date: September 21, 2006
    Inventors: Hiroshi Nagai, Hidenori Ikeno