Patents by Inventor Atsumu Iguchi
Atsumu Iguchi 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: 6952246Abstract: A liquid crystal display device includes plural reflective electrodes supplied with a video signal, second light-blocking conductive films below the reflective electrodes with a first insulating layer therebetween, and a first light-blocking film below the second light-blocking conductive films so as to cover spacing between the second light-blocking conductive films. Each of the second light-blocking films is electrically connected to a corresponding one of the reflective electrodes, and is disposed to cover at least a portion of spacings between the corresponding one of the reflective electrodes and ones of the reflective electrodes adjacent thereto. A second insulating layer is interposed between the first and second light-blocking films, and its thickness is from 150 nm to 450 nm.Type: GrantFiled: July 16, 2004Date of Patent: October 4, 2005Assignees: Hitachi, Ltd., Hitachi Device Engineering Co., Ltd.Inventors: Katsumi Matsumoto, Iwao Takemoto, Hideki Nakagawa, Eiichiro Ito, Atsumu Iguchi, Kenji Kitajima, Masatoshi Furihata, Takeshi Ohashi, Shigeo Nakamura, Kouki Sakai
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Publication number: 20040263711Abstract: A liquid crystal display device includes plural reflective electrodes supplied with a video signal, second light-blocking conductive films below the reflective electrodes with a first insulating layer therebetween, and a first light-blocking film below the second light-blocking conductive films so as to cover spacing between the second light-blocking conductive films. Each of the second light-blocking films is electrically connected to a corresponding one of the reflective electrodes, and is disposed to cover at least a portion of spacings between the corresponding one of the reflective electrodes and ones of the reflective electrodes adjacent thereto. A second insulating layer is interposed between the first and second light-blocking films, and its thickness is from 150 nm to 450 nm.Type: ApplicationFiled: July 16, 2004Publication date: December 30, 2004Inventors: Katsumi Matsumoto, Iwao Takemoto, Hideki Nakagawa, Eiichiro Ito, Atsumu Iguchi, Kenji Kitajima, Masatoshi Furihata, Takeshi Ohashi, Shigeo Nakamura, Kouki Sakai
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Patent number: 6784956Abstract: A liquid crystal display device includes a first substrate, a second substrate, a liquid crystal layer sandwiched between the first and second substrate, plural reflective electrodes arranged on a surface of the first substrate on a liquid crystal layer side thereof, each of the reflective electrodes being adapted to be supplied with a video signal; and plural light-blocking conductive films disposed below the reflective electrodes with an insulating layer interposed between the light-blocking films and the reflective electrodes. Each of the light-blocking films is electrically connected to a corresponding one of the reflective electrodes, and is disposed to cover at least a portion of spacings between the corresponding one of the reflective electrodes and ones of the reflective electrodes adjacent thereto.Type: GrantFiled: July 20, 2001Date of Patent: August 31, 2004Assignees: Hitachi, Ltd., Hitachi Device Engineering Co., Ltd.Inventors: Katsumi Matsumoto, Iwao Takemoto, Hideki Nakagawa, Eiichiro Ito, Atsumu Iguchi, Kenji Kitajima, Masatoshi Furihata, Takeshi Ohashi, Shigeo Nakamura, Kouki Sakai
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Publication number: 20040165123Abstract: The present invention provides a liquid crystal display device for a projector which exhibits an excellent moisture resistance and a heat radiation property. The liquid crystal display device for a projector includes at least a liquid crystal panel which forms respective substrates which are arranged to face each other with liquid crystal therebetween into an envelop and a package which mounts the liquid crystal panel thereon, and the package is formed of a metal body which forms a recessed portion in one surface thereof and the liquid crystal panel is mounted in the recessed portion.Type: ApplicationFiled: February 5, 2004Publication date: August 26, 2004Inventors: Atsumu Iguchi, Ikuko Nagayama, Iwao Takemoto, Masanori Ootawa
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Publication number: 20030107698Abstract: In a liquid crystal display device which forms pixels and a driving circuit on a same substrate, it is possible to realize the liquid crystal display device which can be easily assembled. A peripheral frame is formed such that the peripheral frame surrounds a display region on which the pixels are formed. The liquid crystal composition is held in the inside of the peripheral frame. A sealing material is filled into the outside of the peripheral frame with an equal width. Inside the peripheral frame, a driving circuit forming region is provided. A liquid crystal panel is housed in a package. A housing portion is closed by a light shielding frame. The light shielding frame is configured to also perform the light shielding of the driving circuit forming region in the inside of the peripheral frame.Type: ApplicationFiled: December 10, 2002Publication date: June 12, 2003Inventors: Ikuko Nagayama, Atsumu Iguchi, Shigeo Nakamura, Hideki Nakagawa
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Publication number: 20020008800Abstract: A liquid crystal display device includes a first substrate, a second substrate, a liquid crystal layer sandwiched between the first and second substrate, plural reflective electrodes arranged on a surface of the first substrate on a liquid crystal layer side thereof, each of the reflective electrodes being adapted to be supplied with a video signal; and plural light-blocking conductive films disposed below the reflective electrodes with an insulating layer interposed between the light-blocking films and the reflective electrodes. Each of the light-blocking films is electrically connected to a corresponding one of the reflective electrodes, and is disposed to cover at least a portion of spacings between the corresponding one of the reflective electrodes and ones of the reflective electrodes adjacent thereto.Type: ApplicationFiled: July 20, 2001Publication date: January 24, 2002Inventors: Katsumi Matsumoto, Iwao Takemoto, Hideki Nakagawa, Eiichiro Ito, Atsumu Iguchi, Kenji Kitajima, Masatoshi Furihata, Takeshi Ohashi, Shigeo Nakamura, Kouki Sakai
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Patent number: 5880795Abstract: A reflection-type liquid crystal display module has a liquid crystal panel including a first substrate of, for example, a rectangular shape, a second substrate opposed to the first substrate and a liquid crystal layer provided in a space between the first substrate and the second substrate to form a display screen, a package for encasing and holding the liquid crystal panel while maintaining the first substrate in an exposed state and a dichroic prism to which the first substrate is attached. At least two sides each of the first substrate have a side edge extruding outwardly over a corresponding side end of the second substrate. The side edges of the first substrate are fixed between the dichroic prism and the package, whereby the second substrate is supported by the first substrate and not by the package.Type: GrantFiled: May 5, 1997Date of Patent: March 9, 1999Assignees: Hitachi, Ltd., Hitachi Device Engineering Co., Ltd.Inventors: Tetsuya Nagata, Iwao Takemoto, Toshio Miyazawa, Katsutoshi Saito, Atsumu Iguchi
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Patent number: 5673083Abstract: A video camera unit is separated into a holder for receiving lenses and a base on which a solid-state image pickup chip is mounted. The holder and the base are assembled together with the distance between them made variable so that it is possible to adjust the back focus of the lens. Further, a video camera unit has a holder which is separated into a first holder for receiving lenses and a second holder for receiving a solid-state image pickup device so that both holders can be assembled together with the distance between them made variable. Therefore, it is also possible to adjust the back focus of the lens.Type: GrantFiled: January 31, 1995Date of Patent: September 30, 1997Assignees: Hitachi, Ltd., Echo Co., Ltd.Inventors: Akiya Izumi, Iwao Takemoto, Hiroichi Sokei, Masahiko Kadowaki, Takamasa Naito, Hiroyoshi Kojima, Atsumu Iguchi, Masaaki Yokoyama, Junichirou Nakajima, Masayuki Takahashi, Kunio Niwa
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Patent number: 5400072Abstract: A video camera unit is separated into a holder for receiving lenses and a base on which a solid-state image pickup chip is mounted. The holder and the base are assembled together with the distance between them made variable so that it is possible to adjust the back focus of the lens. Further, a video camera unit has a holder which is separated into a first holder for receiving lenses and a second holder for receiving a solid-state image pickup device so that both holders can be assembled together with the distance between them made variable. Therefore, it is also possible to adjust the back focus of the lens.Type: GrantFiled: February 16, 1990Date of Patent: March 21, 1995Assignees: Hitachi, Ltd., Echo Co., Ltd.Inventors: Akiya Izumi, Iwao Takemoto, Hiroichi Sokei, Masahiko Kodowaki, Takamasa Naito, Hiroyoshi Kojima, Atsumu Iguchi, Masaaki Yokoyama, Junichirou Nakajima, Masayuki Takahashi, Kunio Niwa
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Patent number: 5274456Abstract: An imaging assembly, which is particularly useful for a video camera unit, comprising a set of lenses, some of which have a non-refractive surface, and an image sensor. A holder is provided for holding both the set of lenses and the image sensor to be aligned with one another. Circuitry is also provided so that the sensitivity of the image sensor can be electrically varied.Type: GrantFiled: January 21, 1992Date of Patent: December 28, 1993Assignees: Hitachi, Ltd., Echo Co. Ltd.Inventors: Akiya Izumi, Iwao Takemoto, Hiroichi Sokei, Masahiko Kadowaki, Atsumu Iguchi, Junichiro Nakajima, Masayuki Takahashi, Kunio Niwa