Patents by Inventor Shuichi Haga
Shuichi Haga 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).
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Publication number: 20100046835Abstract: Signals are provided which allow colors in a wider color range than predetermined standards, which can be handled by apparatus according to such predetermined standards. A primary color converter converts first color signals having primary color points in a wider color range than the primary color points according to BT.709 into second color signals based on the primary colors according to BT.709. A photoelectric transducer converts the second color signals into third color signals according to photoelectric transducer characteristics defined in a numerical range wider than a range from 0 to 1.0 of color signals corresponding to a luminance signal and color difference signals according to BT.709. A color signal converter converts the third color signals into a luminance signal and color difference signals. A corrector incorporated in the color signal converter corrects the color difference signals into color difference signals.Type: ApplicationFiled: September 25, 2009Publication date: February 25, 2010Applicant: Sony CorporationInventors: Ko Ishimoto, Koichiro Kakinuma, Takehiro Nakatsue, Tatsuhiko Matsumoto, Shuichi Haga, Hiroshi Takizuka, Yoshiki Shirochi, Naoya Katoh, Hiroshi Yamashita, Koichi Oura, Yoshihiro Kosugi, Junichi Iwai, Kazuji Uemura, Shigeo Kubota, Hideo Morita
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Publication number: 20100039526Abstract: Signals are provided which allow colors in a wider color range than predetermined standards, which can be handled by apparatus according to such predetermined standards. A primary color converter converts first color signals having primary color points in a wider color range than the primary color points according to BT.709 into second color signals based on the primary colors according to BT.709. A photoelectric transducer converts the second color signals into third color signals according to photoelectric transducer characteristics defined in a numerical range wider than a range from 0 to 1.0 of color signals corresponding to a luminance signal and color difference signals according to BT.709. A color signal converter converts the third color signals into a luminance signal and color difference signals. A corrector incorporated in the color signal converter corrects the color difference signals into color difference signals.Type: ApplicationFiled: September 25, 2009Publication date: February 18, 2010Applicant: Sony CorporationInventors: Ko Ishimoto, Koichiro Kakinuma, Takehiro Nakatsue, Tatsuhiko Matsumoto, Shuichi Haga, Hiroshi Takizuka, Yoshiki Shirochi, Naoya Katoh, Hiroshi Yamashita, Koichi Oura, Yoshihiro Kosugi, Junichi Iwai, Kazuji Uemura, Shigeo Kubota, Hideo Morita
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Patent number: 7663714Abstract: Disclosed is a backlight device used for a color liquid crystal display (LCD) apparatus. The red light, green light and blue light, generated by a light source, made up by a red light emitting diode (21R), a green light emitting diode (21G) and a blue light emitting diode (21B), respectively, are mixed together to generate white light. The red light has a half-value width hwr such that 15 nm?hwr?30 nm, and the green light has a half-value width hwg such that 25 nm?hwg?50 nm. The blue light has a half-value width hwb such that 15 nm?hwb?30 nm. The white light illuminates a transmissive color liquid crystal display panel (10) from its back side. The transmissive color liquid crystal display panel includes a color filter (19) made up by a tristimulus filter for wavelength-selecting and transmitting red light, green light and blue light.Type: GrantFiled: August 9, 2005Date of Patent: February 16, 2010Assignee: Sony CorporationInventors: Shuichi Haga, Koichiro Kakinuma, Takehiro Nakatsue, Tatsuhiko Matsumoto, Yasuhiro Tagawa, Yutaka Ota, Takashi Oku, Takeo Arai
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Patent number: 7630032Abstract: A liquid crystal display having a wide color reproduction range is provided. A liquid crystal display includes a liquid crystal panel driven based on image signals, a light source emitting light for illuminating the liquid crystal panel, and a light selective transmission filter, which has wavelength selective transmission characteristics corresponding to spectral characteristics of the light source, selectively transmits light generated from the light source in the specific wavelength regions based on the wavelength selective transmission characteristics, and guides the transmitted light to the liquid crystal panel.Type: GrantFiled: September 2, 2005Date of Patent: December 8, 2009Assignee: Sony CorporationInventors: Shina Kirita, Junichi Ohsako, Toshitaka Kawashima, Masayasu Kakinuma, Shuichi Haga
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Publication number: 20090284687Abstract: A liquid crystal display having a wide color reproduction range is provided. A liquid crystal display includes a liquid crystal panel driven based on image signals, a light source emitting light for illuminating the liquid crystal panel, and a light selective transmission filter, which has wavelength selective transmission characteristics corresponding to spectral characteristics of the light source, selectively transmits light generated from the light source in the specific wavelength regions based on the wavelength selective transmission characteristics, and guides the transmitted light to the liquid crystal panel.Type: ApplicationFiled: July 22, 2009Publication date: November 19, 2009Applicant: SONY CORPORATIONInventors: Shina Kirita, Junichi Ohsako, Toshitaka Kawashima, Masayasu Kakinuma, Shuichi Haga
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Patent number: 7616812Abstract: Signals are provided which allow colors in a wider color range than predetermined standards, which can be handled by apparatus according to such predetermined standards. A primary color converter converts first color signals having primary color points in a wider color range than the primary color points according to BT.709 into second color signals based on the primary colors according to BT.709. A photoelectric transducer converts the second color signals into third color signals according to photoelectric transducer characteristics defined in a numerical range wider than a range from 0 to 1.0 of color signals corresponding to a luminance signal and color difference signals according to BT. 709. A color signal converter converts the third color signals into a luminance signal and color difference signals. A corrector incorporated in the color signal converter corrects the color difference signals into color difference signals.Type: GrantFiled: July 12, 2005Date of Patent: November 10, 2009Assignee: Sony CorporationInventors: Ko Ishimoto, Koichiro Kakinuma, Takehiro Nakatsue, Tatsuhiko Matsumoto, Shuichi Haga, Hiroshi Takizuka, Yoshiki Shirochi, Naoya Katoh, Hiroshi Yamashita, Koichi Oura, Yoshihiro Kosugi, Junichi Iwai, Kazuji Uemura, Shigeo Kubota, Hideo Morita
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Publication number: 20090115713Abstract: A color liquid crystal display device assembly includes a color liquid crystal display device in which pixels each including at least a first subpixel, a second subpixel, and a third subpixel are arranged in a two-dimensional matrix, and a planar light source device which has light sources emitting first primary light corresponding to a first primary color of the light three primary colors and illuminating the color liquid crystal display device, and the liquid crystal display device has (A) second primary light emitting regions which emit second primary light when excited by the first primary light passing through the second subpixel, (B) third primary light emitting regions which emit third primary light when excited by the first primary light passing through the third subpixel, and (C) diffusion regions which diffuse the first primary light emitted from the light sources and passing through each first subpixel.Type: ApplicationFiled: October 23, 2008Publication date: May 7, 2009Applicant: Sony CorporationInventors: Koichiro Kakinuma, Shuichi Haga, Tsuneo Kusunoki, Takahiro Igarashi, Masaaki Kawamata
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Patent number: 7474366Abstract: A color liquid crystal display device capable of displaying a large color gamut is provided. A color liquid crystal display device 100 includes: a transmissive color liquid crystal panel 10 having a color filter and a backlight light source 20, in which the backlight light source 20 includes a fluorescent lamp 21 of large color reproduction range, a color filter 19 is made of color filters of three primary colors that select the wavelength to transmit red light, green light and blue light, and the filter of each color has a spectroscopic characteristic suitable for the spectrum of the fluorescent lamp 21 of large color reproduction range.Type: GrantFiled: March 20, 2006Date of Patent: January 6, 2009Assignee: Sony CorporationInventors: Shuichi Haga, Tatsuhiko Matsumoto, Tsuneo Kusunoki, Takahiro Igarashi, Yoshihide Shimpuku, Takehiro Nakatsue
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Publication number: 20080186433Abstract: A color filter (19) used in a transmissive color liquid crystal display panel of a color liquid crystal display (LCD) apparatus. This color filter (19) is constituted by a tristimulus color filter for wavelength-selecting and transmitting red light, green light and blue light. Mixing of blue color and red color is prohibited by not having the transmission wavelength band of the red filter CFR overlaid substantially on the transmission wavelength band of the blue filter CFB.Type: ApplicationFiled: July 12, 2005Publication date: August 7, 2008Inventors: Shuichi Haga, Koichiro Kakinuma, Takehiro Nakatsue, Tatsuhiko Matsumoto, Yasuhiro Tagawa, Yutaka Ota, Takashi Oku, Takeo Arai
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Publication number: 20080100551Abstract: Disclosed is a color liquid crystal display (LCD) apparatus employing a transmissive color liquid crystal display panel. The apparatus includes, as a light source, a main white light source (21) having a three wavelength phosphorescent lamp emitting light with three or more wavelengths, and an auxiliary light source (22) having at least one of a red light emitting diode (22R), a green light emitting diode (22G) and a blue light emitting diode (22B). The red light emitting diode emits red light with a peak wavelength ?pr=645 nm, the green light emitting diode emits green light with a peak wavelength ?pg=555 nm and the blue light emitting diode emits blue light with a peak wavelength ?pb=440 nm. The light sources act for completely covering the color reproducing range of the sRGB standard and further enlarging respective color ranges.Type: ApplicationFiled: September 29, 2005Publication date: May 1, 2008Applicant: SONY CORPORATIONInventors: Shuichi Haga, Koichiro Kakinuma, Takehiro Nakatsue, Tatsuhiko Matsumoto
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Publication number: 20080036943Abstract: Disclosed is a backlight device which is used for a color liquid crystal display and includes a light source and a backlight housing (23). The light source includes a red light emitting diode (21R), radiating red light, having a peak wavelength ?pr such that 625 nm??pr?685 nm, a green light emitting diode (21G), radiating green light, having a peak wavelength ?pg such that 505 nm??pg?540 nm, and a blue light emitting diode (21B), radiating blue light, having a peak wavelength ?pb such that 420 nm??pb?465 nm. The backlight housing mixes the red light, the green light and the blue light, radiated from the light source, to generate white light. A light emission intensity is adjusted so that a half value width of a spectrum of the red light, a half value width of a spectrum of the green light and a half value width of a spectrum of the blue light are such that 20 nm?hwr?25 nm, 30 nm?hwg?40 nm and 25 nm?hwb?30 nm, respectively.Type: ApplicationFiled: April 28, 2005Publication date: February 14, 2008Inventors: Tatsuhiko Matsumoto, Koichiro Kakinuma, Takehiro Nakatsue, Shuichi Haga
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Publication number: 20070252924Abstract: Disclosed is a color liquid display (LCD) employing a transmissive color liquid display panel. The display includes a complementary color light emitting diode, which is one of a cyan light emitting diode (21C), emitting cyan light, a yellow light emitting diode, emitting yellow light, and a magenta light emitting diode, emitting magenta light, in addition to light emitting diodes emitting three prime colors, as a light source. The display also includes a complementary color filter, having at least one of a cyan filter CFC having a transmission wavelength range corresponding to the cyan light, a yellow filter CFY having a transmission wavelength range corresponding to the yellow light and a magenta filter CFM having a transmission wavelength range corresponding to the magenta light, in addition to a tristimulus color filer, as a color filter (19).Type: ApplicationFiled: September 16, 2005Publication date: November 1, 2007Applicant: Sony CorporationInventors: Shuichi Haga, Koichiro Kakinuma, Takehiro Nakatsue, Tatsuhiko Matsumoto
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Publication number: 20070182887Abstract: Disclosed is a backlight device used for a color liquid crystal display (LCD) apparatus. The red light, green light and blue light, generated by a light source, made up by a red light emitting diode (21R), a green light emitting diode (21G) and a blue light emitting diode (21B), respectively, are mixed together to generate white light. The red light has a half-value width hwr such that 15 nm?hwr?30 nm, and the green light has a half-value width hwg such that 25 nm?hwg?50 nm. The blue light has a half-value width hwb such that 15 nm?hwb?30 nm. The white light illuminates a transmissive color liquid crystal display panel (10) from its back side. The transmissive color liquid crystal display panel includes a color filter (19) made up by a tristimulus filter for wavelength-selecting and transmitting red light, green light and blue light.Type: ApplicationFiled: August 9, 2005Publication date: August 9, 2007Inventors: Shuichi Haga, Koichiro Kakinuma, Takehiro Nakatsue, Tatsuhiko Matsumoto, Yasuhiro Tagawa, Yutaka Ota, Takashi Oku, Takeo Arai
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Publication number: 20070171289Abstract: It is an object of the present invention to provide signals which allow colors in a wider color range than predetermined standards, which can be handled by apparatus according to such predetermined standards. A primary color converter 62 converts first color signals having primary color points in a wider color range than the primary color points according to BT.709 into second color signals based on the primary colors according to BT.709. A photoelectric transducer 63 converts the second color signals into third color signals according to photoelectric transducer characteristics defined in a numerical range wider than a range from 0 to 1.0 of color signals corresponding to a luminance signal and color difference signals according to BT.709. A color signal converter 64 converts the third color signals into a luminance signal and color difference signals. A corrector 64A incorporated in the color signal converter corrects the color difference signals into color difference signals in a range from ?0.57 to 0.Type: ApplicationFiled: July 12, 2005Publication date: July 26, 2007Applicant: Sony CorporationInventors: Ko Ishimoto, Koichiro Kakinuma, Takehiro Nakatsue, Tatsuhiko Matsumoto, Shuichi Haga, Hiroshi Takizuka, Yoshiki Shirochi, Naoya Katoh, Hiroshi Wamashita, Koichi Oura, Yoshihiro Kosugi, Junichi Iwai, Kazuji Uemura, Shigeo Kubota, Hideo Morita
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Publication number: 20060227260Abstract: A color liquid crystal display device capable of displaying a large color gamut is provided. A color liquid crystal display device 100 includes: a transmissive color liquid crystal panel 10 having a color filter and a backlight light source 20, in which the backlight light source 20 includes a fluorescent lamp 21 of large color reproduction range, a color filter 19 is made of color filters of three primary colors that select the wavelength to transmit red light, green light and blue light, and the filter of each color has a spectroscopic characteristic suitable for the spectrum of the fluorescent lamp 21 of large color reproduction range.Type: ApplicationFiled: March 20, 2006Publication date: October 12, 2006Applicant: Sony CorporationInventors: Shuichi Haga, Takehiro Nakatsue, Tatsuhiko Matsumoto, Tsuneo Kusunoki, Takahiro Igarashi, Yoshihide Shimpuku
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Publication number: 20060050198Abstract: A liquid crystal display having a wide color reproduction range is provided. A liquid crystal display includes a liquid crystal panel driven based on image signals, a light source emitting light for illuminating the liquid crystal panel, and a light selective transmission filter, which has wavelength selective transmission characteristics corresponding to spectral characteristics of the light source, selectively transmits light generated from the light source in the specific wavelength regions based on the wavelength selective transmission characteristics, and guides the transmitted light to the liquid crystal panel.Type: ApplicationFiled: September 2, 2005Publication date: March 9, 2006Applicant: Sony CorporationInventors: Shina Kirita, Junichi Ohsako, Toshitaka Kawashima, Masayasu Kakinuma, Shuichi Haga
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Patent number: 5903969Abstract: A floating magnetic head device in which a slider carrying a magnetic head is supported by a supporting member. An intermediate layer composed of elements of the groups III or IV of the Periodic Table and an upper layer composed of hard carbon are sequentially deposited at least on the surface of slide rails formed on the major surface of the slider operating as a floating surface. It is possible with the floating magnetic head device to reduce the abrasion and sticking between the slider and the magnetic disc for improving abrasion resistance and CSS durability of the slider and the magnetic disc as well as durability and operational reliability of the magnetic head and the magnetic disc as articles of commerce.Type: GrantFiled: December 13, 1996Date of Patent: May 18, 1999Assignee: Sony CorporationInventor: Shuichi Haga
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Patent number: 5875078Abstract: In a magnetoresistance thin film magnetic head, a bias conductor and a magnetoresistive magnetic sensing section are electrically connected to each other in series. Further, the bias conductor (7) is formed in such a pattern as to have a width and distance from a magnetic recording medium facing surface which become larger as it is away from a portion transversing the magnetoresistive magnetic sensing section.Type: GrantFiled: August 8, 1996Date of Patent: February 23, 1999Assignee: Sony CorporationInventors: Hideo Suyama, Takuji Shibata, Norio Saito, Mamoru Sasaki, Akio Takada, Jin Sato, Shuichi Haga
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Patent number: 5867350Abstract: A magneto-resistance effect magnetic head having a uniform bias distribution and adapted for avoiding shorting between a magneto-resistance device and a bias conductor wherein a magneto-resistance device 5 and a bias conductor 6 for applying a bias magnetic field to the magneto-resistance device 5 are interposed between a lower shielding magnetic member 1 and an upper shielding magnetic member 2. The bias conductor is embedded in a groove formed in the shielding magnetic member provided on the opposite side of forward and rear electrodes with respect to the magneto-resistance effect device.Type: GrantFiled: March 18, 1997Date of Patent: February 2, 1999Assignee: Sony CorporationInventors: Shuichi Haga, Mamoru Sasaki, Hideo Suyama, Nobuhiro Sugawara, Akio Takada, Mikiya Kurosu, Chizuru Ohshima
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Patent number: 5862013Abstract: A floating magnetic head device in which a slider carrying a magnetic head is supported by a supporting member. An intermediate layer composed of elements of the groups III or IV of the Periodic Table and an upper layer composed of hard carbon are sequentially deposited at least on the surface of slide rails formed on the major surface of the slider operating as a floating surface. It is possible with the floating magnetic head device to reduce the abrasion and sticking between the slider and the magnetic disc for improving abrasion resistance and CSS durability of the slider and the magnetic disc as well as durability and operational reliability of the magnetic head and the magnetic disc as articles of commerce.Type: GrantFiled: October 2, 1997Date of Patent: January 19, 1999Assignee: Sony CorporationInventor: Shuichi Haga