Patents by Inventor Tomohiro Miyoshi
Tomohiro Miyoshi 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: 20240145153Abstract: An inductor component includes a base body including an insulator, an inductor wire extending inside the base body, extended electrodes connected to the inductor wire, each of the extended electrodes having a portion exposed to outside of the base body, and outer electrodes connected to respective ones of the extended electrodes. The base body, inductor wire, and extended electrodes form a component body. When a first sectional area is defined as an area of a section of the component body taken along a plane parallel to the bottom surface of the component body at an arbitrary position and when a second sectional area is defined as an area of another section of the component body taken along another plane parallel to the bottom surface closer to the bottom surface from the arbitrary position, the second sectional area is equal to or greater than the first sectional area.Type: ApplicationFiled: September 5, 2023Publication date: May 2, 2024Applicant: Murata Manufacturing Co., Ltd.Inventors: Yoshihiro FUJITA, Hiromi MIYOSHI, Tomohiro DOZEN, Hirofumi KABAYAMA
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Patent number: 7553024Abstract: An image display device includes a light source which outputs a first light including a first color light, a second color light and a third color light, a polarity converter which unifies polarities of the first light into a single polarity, a dichroic mirror which separates the first color light from the first light which is output by the polarity converter, and first to third reflective liquid crystal display elements, respectively, installed for the first to third color lights. First to third polarized beam splitters are provided together with first and second wavelength selective polarity rotator elements. A projection lens is provided so as to project a light combined by the third polarized beam splitter, and the first color light, which is reflected by the first reflective liquid crystal display element, permeates the first polarized beam splitter and the third polarized beam splitter.Type: GrantFiled: April 12, 2006Date of Patent: June 30, 2009Assignee: Hitachi, Ltd.Inventors: Satoshi Ouchi, Taro Imahase, Tomohiro Miyoshi, Fukuyasu Abe
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Patent number: 7327520Abstract: The present invention discloses the structure of the array lens that at least any one of the diagonal size, vertical size and lateral size of lens cell is set to almost 1/(4.5 or more) for each corresponding size of the display elements, the structure that the diagonal size of lens cell is set to almost 0.18 inch or less, the structure that the total number of lens cells is set to almost 240 or more and the structure that the lens focal distance of lens cell is set to almost 30 mm or less.Type: GrantFiled: July 25, 2006Date of Patent: February 5, 2008Assignee: Hitachi, Ltd.Inventors: Satoshi Ohuchi, Masahiko Yatsu, Taro Imahase, Tomohiro Miyoshi, Yasuo Otsuka, Takesuke Maruyama
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Patent number: 7170567Abstract: A projection type image display apparatus includes a light source to emit light; a polarizing beam splitter to polarize the light received from the light source; a first lens array including a plurality of first lens cells having rectangular shapes to receive the light from the polarizing beam splitter, each first lens cell having a first side and a second side, the first side being longer than the second side, the first lens array having a rectangular shape, the first lens array having a third side and a fourth side, the third side being longer than the fourth side, the first sides of the first lens cells and the third side of the first lens array extending along a first direction; a second lens array including a plurality of second lens cells and being configured to receive the light from the first lens array, the second lens array having a rectangular shape and having a fifth side and a sixth side, the fifth and sixth sides of the second lens array having substantially the same dimensions as the third andType: GrantFiled: March 3, 2003Date of Patent: January 30, 2007Assignee: Hitachi, Ltd.Inventors: Satoshi Ouchi, Tomohiro Miyoshi, Taro Imahase, Masahiko Yatsu, Koji Hirata
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Patent number: 7152978Abstract: A liquid crystal projector comprises an illuminating optical system including a light source, a color separating optical system for separating illuminating light rays emitted by the illuminating optical system into light rays of three colors, a projection lens unit comprising a projection lens, a cross dichroic prism disposed near a light receiving end of the projection lens, and a plurality of liquid crystal panels arranged around the cross dichroic prism, and a light source power supply for supplying power to the light source. The projection lens unit, the color separating optical system, the illuminating optical system and the light source power supply are arranged in that order. The liquid crystal projector has an outside size in a horizontal plane of 263 mm by 318 mm or below. The liquid crystal panels have a display screen size of 0.9 in. A cooling fan for cooling the plurality of liquid crystal panels is disposed beside the projection lens.Type: GrantFiled: October 26, 2004Date of Patent: December 26, 2006Assignee: Hitachi, Ltd., and Hitachi Video and Information Systems, Inc.Inventors: Nobuhiko Konuma, Hidetomo Yoshimura, Seiichi Sekiguchi, Mikiharu Kuwata, Masaharu Deguchi, Takashi Kakuda, Yutaka Matsuda, Takuya Shiaki, Futoshi Yamasaki, Atsushi Ishibashi, Koichi Umezawa, Takeshi Hoshino, Shigehisa Hagura, Makoto Fukatsu, Nobuyuki Kaku, Kenji Fuse, Satoshi Ohuchi, Tomohiro Miyoshi, Naohiro Ozawa, Masahiko Yatsu, Yasuo Otsuka, Takesuke Maruyama
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Publication number: 20060256443Abstract: The present invention discloses the structure of the array lens that at least any one of the diagonal size, vertical size and lateral size of lens cell is set to almost 1/(4.5 or more) for each corresponding size of the display elements, the structure that the diagonal size of lens cell is set to almost 0.18 inch or less, the structure that the total number of lens cells is set to almost 240 or more and the structure that the lens focal distance of lens cell is set to almost 30 mm or less.Type: ApplicationFiled: July 25, 2006Publication date: November 16, 2006Inventors: Satoshi Ohuchi, Masahiko Yatsu, Taro Imahase, Tomohiro Miyoshi, Yasuo Otsuka, Takesuke Maruyama
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Patent number: 7106518Abstract: The present invention discloses the structure of the array lens that at least any one of the diagonal size, vertical size and lateral size of lens cell is set to almost 1/(4.5 or more) for each corresponding size of the display elements, the structure that the diagonal size of lens cell is set to almost 0.18 inch or less, the structure that the total number of lens cells is set to almost 240 or more and the structure that the lens focal distance of lens cell is set to almost 30 mm or less.Type: GrantFiled: September 23, 2005Date of Patent: September 12, 2006Assignee: Hiatchi, Ltd.Inventors: Satoshi Ohuchi, Masahiko Yatsu, Taro Imahase, Tomohiro Miyoshi, Yasuo Otsuka, Takesuke Maruyama
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Publication number: 20060187416Abstract: An image display device includes a light source which outputs a first light including a first color light, a second color light and a third color light, a polarity converter which unifies polarities of the first light into a single polarity, a dichroic mirror which separates the first color light from the first light which is output by the polarity converter, and first to third reflective liquid crystal display elements, respectively, installed for the first to third color lights. First to third polarized beam splitters are provided together with first and second wavelength selective polarity rotator elements. A projection lens is provided so as to project a light combined by the third polarized beam splitter, and the first color light, which is reflected by the first reflective liquid crystal display element, permeates the first polarized beam splitter and the third polarized beam splitter.Type: ApplicationFiled: April 12, 2006Publication date: August 24, 2006Inventors: Satoshi Ouchi, Taro Imahase, Tomohiro Miyoshi, Fukuyasu Abe
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Patent number: 7066600Abstract: Disclosed is a compact, light, inexpensive reflection type liquid crystal projector optical unit or reflection type liquid crystal projector which provides high brightness without contrast deterioration caused by light leakage associated with black image display. The unit or projector uses, as a polarizer/analyzer for a reflection liquid crystal panel, a reflection polarizing plate which functions as a polarizing plate by its grating function only in a specific direction. It also uses an auxiliary polarizer and an absorption auxiliary analyzer. Their reflection axis or absorption axis is adjusted according to the characteristic of the reflection liquid crystal panel so as to minimize light leakage associated with black image display.Type: GrantFiled: June 13, 2005Date of Patent: June 27, 2006Assignee: Hitachi, Ltd.Inventors: Tsutomu Nakashima, Satoshi Ouchi, Taro Imahase, Tomohiro Miyoshi
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Patent number: 7044607Abstract: An image display device has three reflective image display elements for red, green and blue to form an optical image according to a video signal from light output from a light source, and an optical system to supply light onto the display elements and to combine and output the light reflected from the display elements. The image display device includes a first polarity converting unit to convert luminous flux from the light source to S polarized light, a first polarized beam splitter, and second polarized beam splitter. The reflective image display element for green is provided in a vicinity of the first polarized beam splitter, and the light reflected by the first polarized beam splitter and input to the reflective image display element for green is S polarized light. The light output from the reflective image display element for green permeates the first and second polarized beam splitters.Type: GrantFiled: July 7, 2005Date of Patent: May 16, 2006Assignee: Hitachi, Ltd.Inventors: Satoshi Ouchi, Taro Imahase, Tomohiro Miyoshi, Fukuyasu Abe
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Publication number: 20060012883Abstract: The present invention discloses the structure of the array lens that at least any one of the diagonal size, vertical size and lateral size of lens cell is set to almost 1/(4.5 or more) for each corresponding size of the display elements, the structure that the diagonal size of lens cell is set to almost 0.18 inch or less, the structure that the total number of lens cells is set to almost 240 or more and the structure that the lens focal distance of lens cell is set to almost 30 mm or less.Type: ApplicationFiled: September 23, 2005Publication date: January 19, 2006Inventors: Satoshi Ohuchi, Masahiko Yatsu, Taro Imahase, Tomohiro Miyoshi, Yasuo Otsuka, Takesuke Maruyama
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Patent number: 6987546Abstract: An image display technique which projects R, G, and B light rays on a display device to form an image with an increased utilization ratio of light and an increased screen brightness. R, G, and B light rays as a result of color separation are reflected by plural reflective surfaces on the inner side, etc. of a rotary polyhedral reflector, so that, as the reflector rotates around a central axis and its reflection plane sequentially changes from one reflective surface to a next one, the reflected light rays are projected on a display device surface in different positions and scroll in a prescribed direction.Type: GrantFiled: November 13, 2002Date of Patent: January 17, 2006Assignee: Hitachi, Ltd.Inventors: Satoshi Ouchi, Masahiko Yatsu, Koji Hirata, Futoshi Yamasaki, Tomohiro Miyoshi
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Patent number: 6963453Abstract: The present invention discloses the structure of the array lens that at least any one of the diagonal size, vertical size and lateral size of lens cell is set to almost 1/(4.5 or more) for each corresponding size of the display elements, the structure that the diagonal size of lens cell is set to almost 0.18 inch or less, the structure that the total number of lens cells is set to almost 240 or more and the structure that the lens focal distance of lens cell is set to almost 30 mm or less.Type: GrantFiled: April 13, 2004Date of Patent: November 8, 2005Assignee: Hitachi, Ltd.Inventors: Satoshi Ohuchi, Masahiko Yatsu, Taro Imahase, Tomohiro Miyoshi, Yasuo Otsuka, Takesuke Maruyama
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Publication number: 20050243280Abstract: An image display device has three reflective image display elements for red, green and blue to form an optical image according to a video signal from light output from a light source, and an optical system to supply light onto the display elements and to combine and output the light reflected from the display elements. The image display device includes a first polarity converting unit to convert luminous flux from the light source to S polarized light, a first polarized beam splitter, and second polarized beam splitter. The reflective image display element for green is provided in a vicinity of the first polarized beam splitter, and the light reflected by the first polarized beam splitter and input to the reflective image display element for green is S polarized light. The light output from the reflective image display element for green permeates the first and second polarized beam splitters.Type: ApplicationFiled: July 7, 2005Publication date: November 3, 2005Inventors: Satoshi Ouchi, Taro Imahase, Tomohiro Miyoshi, Fukuyasu Abe
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Publication number: 20050237489Abstract: Disclosed is a compact, light, inexpensive reflection type liquid crystal projector optical unit or reflection type liquid crystal projector which provides high brightness without contrast deterioration caused by light leakage associated with black image display. The unit or projector uses, as a polarizer/analyzer for a reflection liquid crystal panel, a reflection polarizing plate which functions as a polarizing plate by its grating function only in a specific direction. It also uses an auxiliary polarizer and an absorption auxiliary analyzer. Their reflection axis or absorption axis is adjusted according to the characteristic of the reflection liquid crystal panel so as to minimize light leakage associated with black image display.Type: ApplicationFiled: June 13, 2005Publication date: October 27, 2005Applicant: HITACHI, LTD.Inventors: Tsutomu Nakashima, Satoshi Ouchi, Taro Imahase, Tomohiro Miyoshi
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Patent number: 6926411Abstract: An image display device has three reflective image display elements for red, green and blue to form an optical image according to a video signal from light output from a light source, and an optical system to supply light onto the display elements and to combine and output the light reflected from the display elements. The image display device includes a first polarity converting unit to convert luminous flux from the light source to S polarized light, a first polarized beam splitter, and second polarized beam splitter. The reflective image display element for green is provided in a vicinity of the first polarized beam splitter, and the light reflected by the first polarized beam splitter and input to the reflective image display element for green is S polarized light. The light output from the reflective image display element for green permeates the first and second polarized beam splitters.Type: GrantFiled: August 12, 2003Date of Patent: August 9, 2005Assignee: Hitachi, Ltd.Inventors: Satoshi Ouchi, Taro Imahase, Tomohiro Miyoshi, Fukuyasu Abe
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Patent number: 6910773Abstract: Disclosed is a compact, light, inexpensive reflection type liquid crystal projector optical unit or reflection type liquid crystal projector which provides high brightness without contrast deterioration caused by light leakage associated with black image display. The unit or projector uses, as a polarizer/analyzer for a reflection liquid crystal panel, a reflection polarizing plate which functions as a polarizing plate by its grating function only in a specific direction. It also uses an auxiliary polarizer and an absorption auxiliary analyzer. Their reflection axis or absorption axis is adjusted according to the characteristic of the reflection liquid crystal panel so as to minimize light leakage associated with black image display.Type: GrantFiled: August 5, 2003Date of Patent: June 28, 2005Assignee: Hitachi, Ltd.Inventors: Tsutomu Nakashima, Satoshi Ouchi, Taro Imahase, Tomohiro Miyoshi
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Patent number: 6910775Abstract: A projection-type display apparatus is improved in contrast by an overlap between a band of light to be cut off by a notch filter and a band of light wavelengths to which the polarization converting efficiencies of first and second specific-wavelength converter elements are 50%, respectively.Type: GrantFiled: January 15, 2003Date of Patent: June 28, 2005Assignee: Hitachi, Ltd.Inventors: Taro Imahase, Satoshi Ouchi, Tetsu Ohishi, Tomohiro Miyoshi
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Publication number: 20050083490Abstract: A liquid crystal projector comprises an illuminating optical system including a light source, a color separating optical system for separating illuminating light rays emitted by the illuminating optical system into light rays of three colors, a projection lens unit comprising a projection lens, a cross dichroic prism disposed near a light receiving end of the projection lens, and a plurality of liquid crystal panels arranged around the cross dichroic prism, and a light source power supply for supplying power to the light source. The projection lens unit, the color separating optical system, the illuminating optical system and the light source power supply are arranged in that order. The liquid crystal projector has an outside size in a horizontal plane of 263 mm by 318 mm or below. The liquid crystal panels have a display screen size of 0.9 in. A cooling fan for cooling the plurality of liquid crystal panels is disposed beside the projection lens.Type: ApplicationFiled: October 26, 2004Publication date: April 21, 2005Inventors: Nobuhiko Konuma, Hidetomo Yoshimura, Seiichi Sekiguchi, Mikiharu Kuwata, Masaharu Deguchi, Takashi Kakuda, Yutaka Matsuda, Takuya Shiaki, Futoshi Yamasaki, Atsushi Ishibashi, Koichi Umezawa, Takeshi Hoshino, Shigehisa Hagura, Makoto Fukatsu, Nobuyuki Kaku, Kenji Fuse, Satoshi Ohuchi, Tomohiro Miyoshi, Naohiro Ozawa, Masahiko Yatsu, Yasuo Otsuka, Takesuke Maruyama
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Patent number: 6824273Abstract: A liquid crystal projector comprises an illuminating optical system including a light source, a color separating optical system for separating illuminating light rays emitted by the illuminating optical system into light rays of three colors, a projection lens unit comprising a projection lens, a cross dichroic prism disposed near a light receiving end of the projection lens, and a plurality of liquid crystal panels arranged around the cross dichroic prism, and a light source power supply for supplying power to the light source. The projection lens unit, the color separating optical system, the illuminating optical system and the light source power supply are arranged in that order. The liquid crystal projector has an outside size in a horizontal plane of 263 mm by 318 mm or below. The liquid crystal panels have a display screen size of 0.9 in. A cooling fan for cooling the plurality of liquid crystal panels is disposed beside the projection lens.Type: GrantFiled: April 25, 2003Date of Patent: November 30, 2004Assignees: Hitachi, Ltd., Hitachi Video Information System, Inc.Inventors: Nobuhiko Konuma, Hidetomo Yoshimura, Seiichi Sekiguchi, Mikiharu Kuwata, Masaharu Deguchi, Takashi Kakuda, Yutaka Matsuda, Takuya Shiaki, Futoshi Yamasaki, Atsushi Ishibashi, Koichi Umezawa, Takeshi Hoshino, Shigehisa Hagura, Makoto Fukatsu, Nobuyuki Kaku, Kenji Fuse, Satoshi Ohuchi, Tomohiro Miyoshi, Naohiro Ozawa, Masahiko Yatsu, Yasuo Otsuka, Takesuke Maruyama