Patents by Inventor Masami Shishikura
Masami Shishikura 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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Patent number: 9951275Abstract: A liquid crystal display device which prevents a decrease in the voltage holding ratio (VHR) of a liquid crystal layer and an increase in ion density (ID) therein and which overcomes problems of defective display such as voids, uneven alignment, and screen burn-in. The liquid crystal display device prevents a decrease in the voltage holding ratio (VHR) of a liquid crystal layer and an increase in ion density (ID) therein and reduces defective display such as screen burn-in; hence, such a liquid crystal display device is particularly useful as liquid crystal display devices of a VA mode and PSVA mode which involve active matrix driving and can be applied to the liquid crystal display devices of liquid crystal TV sets, monitors, mobile phones, and smartphones.Type: GrantFiled: March 12, 2014Date of Patent: April 24, 2018Assignee: DIC CORPORATIONInventors: Shinji Ogawa, Yoshinori Iwashita, Junichiro Koike, Hiroshi Maki, Masami Shishikura, Ryosuke Asami
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Patent number: 9810938Abstract: A liquid crystal display device that prevents a decrease in the voltage holding ratio (VHR) and an increase in the ion density (ID) in a liquid crystal layer and that resolves the problems of display defects, such as white streaks, variations in alignment, and image sticking. The liquid crystal display has features of preventing a decrease in the voltage holding ratio (VHR) and an increase in the ion density (ID) in a liquid crystal layer and suppressing display defects such as image sticking. Therefore, the liquid crystal display device is particularly useful for active matrix driving liquid crystal display devices with an IPS mode or an FFS mode and can be applied to liquid crystal display devices of, for example, liquid crystal televisions, monitors, cellular phones, and smart phones.Type: GrantFiled: November 29, 2013Date of Patent: November 7, 2017Assignee: DIC CORPORATIONInventors: Takeshi Kuriyama, Jouji Kawamura, Hiroshi Maki, Junichiro Koike, Masami Shishikura, Ryosuke Asami
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Patent number: 9464231Abstract: There is provided a liquid crystal display device which prevents a decrease in the voltage holding ratio (VHR) of a liquid crystal layer and an increase in ion density (ID) therein and which overcomes problems of defective display such as voids, uneven alignment, and screen burn-in. The liquid crystal display device prevents a decrease in the voltage holding ratio (VHR) of a liquid crystal layer and an increase in ion density (ID) therein and reduces defective display such as screen burn-in; hence, such a liquid crystal display device is particularly useful as liquid crystal display devices of a VA mode and PSVA mode which involve active matrix driving and can be applied to the liquid crystal display devices of liquid crystal TV sets, monitors, mobile phones, and smartphones.Type: GrantFiled: March 12, 2014Date of Patent: October 11, 2016Assignee: DIC CORPORATIONInventors: Shinji Ogawa, Yoshinori Iwashita, Hiroshi Maki, Junichiro Koike, Masami Shishikura, Ryosuke Asami
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Patent number: 9436032Abstract: There is provided a liquid crystal display device that includes a liquid crystal composition and a color filter having a particular slope parameter that indicates the degree of aggregation of an organic pigment. The liquid crystal display device prevents a decrease in the voltage holding ratio (VHR) and an increase in the ion density (ID) in a liquid crystal layer and resolves the problems of display defects, such as white streaks, variations in alignment, and image sticking. The liquid crystal display device prevents a decrease in the voltage holding ratio (VHR) and an increase in the ion density (ID) in a liquid crystal layer and suppressing display defects such as image sticking. Therefore, the liquid crystal display device is useful for active matrix driving liquid crystal display devices with an IPS mode or an FFS mode and can be applied to liquid crystal display devices.Type: GrantFiled: December 24, 2013Date of Patent: September 6, 2016Assignee: DIC CORPORATIONInventors: Takeshi Kuriyama, Jouji Kawamura, Junichiro Koike, Hiroshi Maki, Masami Shishikura, Ryosuke Asami
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Publication number: 20160252772Abstract: The present invention provides a liquid crystal display device that prevents a decrease in the voltage holding ratio (VHR) and an increase in the ion density (ID) in a liquid crystal layer and that resolves the problems of display defects, such as white streaks, variations in alignment, and image sticking. The liquid crystal display device of the present invention has features of preventing a decrease in the voltage holding ratio (VHR) and an increase in the ion density (ID) in a liquid crystal layer and suppressing display defects such as image sticking Therefore, the liquid crystal display device is particularly useful for active matrix driving liquid crystal display devices with an IPS mode or an FFS mode and can be applied to liquid crystal display devices of, for example, liquid crystal televisions, monitors, cellular phones, and smart phones.Type: ApplicationFiled: November 29, 2013Publication date: September 1, 2016Applicant: DIC CORPORATIONInventors: Takeshi Kuriyama, Jouji Kawamura, Hiroshi Maki, Junichiro Koike, Masami Shishikura, Ryosuke Asami
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Publication number: 20160054619Abstract: There is provided a liquid crystal display device that includes a liquid crystal composition and a color filter having a particular slope parameter that indicates the degree of aggregation of an organic pigment. The liquid crystal display device prevents a decrease in the voltage holding ratio (VHR) and an increase in the ion density (ID) in a liquid crystal layer and resolves the problems of display defects, such as white streaks, variations in alignment, and image sticking. The liquid crystal display device prevents a decrease in the voltage holding ratio (VHR) and an increase in the ion density (ID) in a liquid crystal layer and suppressing display defects such as image sticking. Therefore, the liquid crystal display device is useful for active matrix driving liquid crystal display devices with an IPS mode or an FFS mode and can be applied to liquid crystal display devices.Type: ApplicationFiled: December 24, 2013Publication date: February 25, 2016Applicant: DIC CORPORATIONInventors: Takeshi Kuriyama, Jouji Kawamura, Junichiro Koike, Hiroshi Maki, Masami Shishikura, Ryosuke Asami
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Publication number: 20160009997Abstract: The present invention provides a liquid crystal display device which prevents a decrease in the voltage holding ratio (VHR) of a liquid crystal layer and an increase in ion density (ID) therein and which overcomes problems of defective display such as voids, uneven alignment, and screen burn-in. The liquid crystal display device of the present invention prevents a decrease in the voltage holding ratio (VHR) of a liquid crystal layer and an increase in ion density (ID) therein and reduces defective display such as screen burn-in; hence, such a liquid crystal display device is particularly useful as liquid crystal display devices of a VA mode and PSVA mode which involve active matrix driving and can be applied to the liquid crystal display devices of liquid crystal TV sets, monitors, mobile phones, and smartphones.Type: ApplicationFiled: March 12, 2014Publication date: January 14, 2016Applicant: DIC CORPORATIONInventors: Shinji Ogawa, Yoshinori Iwashita, Junichiro Koike, Hiroshi Maki, Masami Shishikura, Ryosuke Asami
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Publication number: 20150315471Abstract: There is provided a liquid crystal display device which prevents a decrease in the voltage holding ratio (VHR) of a liquid crystal layer and an increase in ion density (ID) therein and which overcomes problems of defective display such as voids, uneven alignment, and screen burn-in. The liquid crystal display device prevents a decrease in the voltage holding ratio (VHR) of a liquid crystal layer and an increase in ion density (ID) therein and reduces defective display such as screen burn-in; hence, such a liquid crystal display device is particularly useful as liquid crystal display devices of a VA mode and PSVA mode which involve active matrix driving and can be applied to the liquid crystal display devices of liquid crystal TV sets, monitors, mobile phones, and smartphones.Type: ApplicationFiled: March 12, 2014Publication date: November 5, 2015Applicant: DIC CORPORATIONInventors: Shinji Ogawa, Yoshinori Iwashita, Hiroshi Maki, Junichiro Koike, Masami Shishikura, Ryosuke Asami
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Patent number: 7509271Abstract: Disclosed are a color-designating server which can display a screen for designating color at a user terminal, which can be connected to a network, a color-designating method, and a recording medium. A matchable color database stores data required for determining matchable colors in a color-designating server which displays a screen for designating color at a user terminal. A conditions-designating processor transmits a conditions-designating screen for designating conditions data, required for determining the matchable colors, to the user terminal. A color data transmission processor determines colors which can be matched under the conditions specified by the conditions data, designated in the conditions-designating screen, by consulting the matchable color database, and transmits the result to the user terminal.Type: GrantFiled: December 27, 2001Date of Patent: March 24, 2009Assignee: Dainippon Ink and Chemicals, Inc.Inventors: Hideki Uchimi, Yoshiro Tomita, Hiroki Goto, Mitsuo Hatanaka, Masaki Okauchi, Masaaki Nakagawa, Masami Shishikura
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Publication number: 20030216972Abstract: This color designating server 11 displays a screen for designating color on a user terminal capable of connecting to a network. This server 11 includes a database 102 that contains information on dyes and pigments required for determining matchable colors, a conditions specification processing section 104 that transmits a conditions specification screen to the user terminal which prompts specification of condition information required for determining the matchable colors, a color information extraction section 115 that extracts matchable color data within the range of the conditions specified with the condition information from database 102 based on the condition information specified with the conditions specification screen, and a color information transmission section 105 that transmits a color plate that indicates the extracted color data to the user terminal in the form of image data superposed on a prescribed background color.Type: ApplicationFiled: May 16, 2003Publication date: November 20, 2003Applicant: DAINIPPON INK AND CHEMICALS, INC.Inventors: Hiroki Gotou, Yoshiro Tomita, Hideki Uchimi, Masaki Okauchi, Masaaki Nakagawa, Mitsuo Hatanaka, Masami Shishikura, Masao Nakamuro, Yoshio Yuasa
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Publication number: 20020082944Abstract: Disclosed are a color-designating server which can display a screen for designating color at a user terminal, which can be connected to a network, a color-designating method, and a recording medium. A matchable color database stores data required for determining matchable colors in a color-designating server which displays a screen for designating color at a user terminal. A conditions-designating processor transmits a conditions-designating screen for designating conditions data, required for determining the matchable colors, to the user terminal. A color data transmission processor determines colors which can be matched under the conditions specified by the conditions data, designated in the conditions-designating screen, by consulting the matchable color database, and transmits the result to the user terminal.Type: ApplicationFiled: December 27, 2001Publication date: June 27, 2002Applicant: DAINIPPON INK AND CHEMICALS, INCInventors: Hideki Uchimi, Yoshiro Tomita, Hiroki Goto, Mitsuo Hatanaka, Masaki Okauchi, Masaaki Nakagawa, Masami Shishikura
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Patent number: 4417167Abstract: In a DC brushless motor including a rotor assembly having permanent magnets and a stator assembly having coils arranged in the magnetic field generated by the permanent magnets of the rotor assembly, with the energization of the coils being controlled so as to impart a rotational torque to the rotor assembly; the permanent magnets of the rotor assembly are flat and are attached to a rotor yoke, which can be constructed as an octagonal prism, to provide a path for the magnetic flux emanating from the magnets and to support the flat magnets so that the latter form substantially a regular polygon in cross section. The magnets can be arranged with their poles in a north-south-north-south sequence against flat side walls of the rotor yoke to provide a flux density pattern that is substantially sinusoidal.Type: GrantFiled: December 11, 1981Date of Patent: November 22, 1983Assignee: Sony CorporationInventors: Hirohisa Ishii, Masami Shishikura, Toshihiko Okamura
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Patent number: 4049984Abstract: In order to facilitate the automated assembly of an electric motor, all of the major components and sub-assemblies thereof are successively brought together in one axial direction.Type: GrantFiled: May 13, 1976Date of Patent: September 20, 1977Assignee: Sony CorporationInventors: Hirohisa Ishii, Masami Shishikura