Patents by Inventor Naofumi Aoyama
Naofumi Aoyama 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: 10766803Abstract: A method for producing a bent glass article includes a heat treatment step of heat-treating a bent glass. The bent glass includes a first main stir-face, a second main surface and an end face. In the heat treatment step, the bent glass is supported by a support jig with one of the main surfaces facing downward. The support jig supports at least a part of one of the main surfaces or the end face in a higher position than the lowest position of one of the main surfaces.Type: GrantFiled: September 13, 2017Date of Patent: September 8, 2020Assignee: AGC Inc.Inventors: Makoto Fujii, Satoshi Kanasugi, Naofumi Aoyama
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Publication number: 20200055771Abstract: The present invention relates to a film-attached glass substrate, characterized by: being provided with a glass substrate having two primary surfaces each having a compressive stress layer, and a film containing 1 at % or more of K disposed on one of the primary surfaces of the glass substrate; and the ratio of the difference in the amount of K in the compressive stress layer between the primary surfaces, the ratio being represented by formula (1), being ?0.027 to 0.027.Type: ApplicationFiled: October 25, 2019Publication date: February 20, 2020Applicant: AGC Inc.Inventors: Yosuke TAKEDA, Toru IKEDA, Naofumi AOYAMA, Tatsuya MIYAJIMA, Yoichi SERA
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Publication number: 20180072607Abstract: A method for producing a bent glass article includes a heat treatment step of heat-treating a bent glass. The bent glass includes a first main stir-face, a second main surface and an end face. In the heat treatment step, the bent glass is supported by a support jig with one of the main surfaces facing downward. The support jig supports at least a part of one of the main surfaces or the end face in a higher position than the lowest position of one of the main surfaces.Type: ApplicationFiled: September 13, 2017Publication date: March 15, 2018Applicant: Asahi Glass Company, LimitedInventors: Makoto Fujii, Satoshi Kanasugi, Naofumi Aoyama
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Publication number: 20010028549Abstract: A portable wordprocessor has a main body and a display support assembly hinged to the main body. The main body has an information entry keyboard, a function keyboard, a control circuit board and a floppy disk drive. The information entry keyboard and the function keyboard have key tops the heights of which do not exceed the height of the portion of the main body which accommodates the floppy disk drive. The information entry keyboard is disposed along the front edge of the main body, while the function keyboard is disposed between the information entry keyboard and the rear edge of the main body. The floppy disk drive is disposed in lateral alignment with the function keyboard. The display support assembly supports a liquid crystal display device which includes a liquid crystal display portion and a liquid crystal control circuit board which is disposed around the liquid crystal display portion and has a thickness which does not exceed the thickness of the liquid crystal display portion.Type: ApplicationFiled: June 5, 2001Publication date: October 11, 2001Inventors: Yuzi Suganuma, Shigeru Matsuoka, Keiji Kamio, Yoshihiro Kashiwa, Seizi Nogami, Kouichi Saito, Isao Yamazaki, Hidechika Kigoshi, Naofumi Aoyama, Toru Watanabe, Yoshihiro Nozaki
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Patent number: 5805125Abstract: A portable wordprocessor has a main body and a display support assembly hinged to the main body. The main body has an information entry keyboard, a function keyboard, a control circuit board and a floppy disk drive. The information entry keyboard and the function keyboard have key tops the heights of which do not exceed the height of the portion of the main body which accommodates the floppy disk drive. The information entry keyboard is disposed along the front edge of the main body, while the function keyboard is disposed between the information entry keyboard and the rear edge of the main body. The floppy disk drive is disposed in lateral alignment with the function keyboard. The display support assembly supports a liquid crystal display device which includes a liquid crystal display portion and a liquid crystal control circuit board which is disposed around the liquid crystal display portion and has a thickness which does not exceed the thickness of the liquid crystal display portion.Type: GrantFiled: June 7, 1995Date of Patent: September 8, 1998Assignee: Hitachi, Ltd.Inventors: Yuzi Suganuma, Shigeru Matsuoka, Keiji Kamio, Yoshihiro Kashiwa, Seizi Nogami, Kouichi Saito, Isao Yamazaki, Hidechika Kigoshi, Naofumi Aoyama, Toru Watanabe, Yoshihiro Nozaki
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Patent number: 5483253Abstract: A portable wordprocessor has a main body and a display support assembly hinged to the main body. The main body has an information entry keyboard, a function keyboard, a control circuit board and a floppy disk drive. The information entry keyboard and the function keyboard have key tops the heights of which do not exceed the height of the portion of the main body which accommodates the floppy disk drive. The information entry keyboard is disposed along the front edge of the main body, while the function keyboard is disposed between the information entry keyboard and the rear edge of the main body. The floppy disk drive is disposed in lateral alignment with the function keyboard. The display support assembly supports a liquid crystal display device which includes a liquid crystal display portion and a liquid crystal control circuit board which is disposed around the liquid crystal display portion and has a thickness which does not exceed the thickness of the liquid crystal display portion.Type: GrantFiled: July 16, 1992Date of Patent: January 9, 1996Assignee: Hitachi, Ltd.Inventors: Yuzi Suganuma, Shigeru Matsuoka, Keiji Kamio, Yoshihiro Kashiwa, Seizi Nogami, Kouichi Saito, Isao Yamazaki, Hidechika Kigoshi, Naofumi Aoyama, Toru Watanabe, Yoshihiro Nozaki
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Patent number: 5123077Abstract: The present invention relates to a light source device and particularly to a light source device which can be applied to a light source apparatus of a liquid crystal display apparatus which utilizes a flat plane type light source. The present invention provides a large size, light weight and thin flat plane light source which ensures uniform high level brightness to the entire part of display panel.Type: GrantFiled: March 20, 1990Date of Patent: June 16, 1992Assignee: Hitachi, Ltd.Inventors: Syuusuke Endo, Naofumi Aoyama, Toshihiko Yabuuchi
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Patent number: 5064276Abstract: A light source device disposing light sources at both end faces of the transparent plate in which a surface of the transparent plate in the side of an observer (front surface) is formed as the inclined and curved surface in view of limiting reduction in quantity of light per unit area at the observing area being far from the light source within a certain level, the one surface of the transparent plate is formed as the rough surface to diffuse the incident light, the other surface of the transparent plate is formed as a mirror-surface, and a reflecting layer having a high lightness is disposed at the lower side of the transparent plate in order to provide sufficient luminance for observers.Type: GrantFiled: June 30, 1989Date of Patent: November 12, 1991Assignee: Hitachi, Ltd.Inventors: Syuusuke Endo, Naofumi Aoyama, Toshihiko Yabuuchi, Teruo Seki
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Patent number: 4764766Abstract: A method is disclosed for driving a liquid crystal display provided, in the same liquid crystal panel, with a dot matrix display part and a fixed pattern or segment display part. The dot matrix display part is driven in a time-multiplexed fashion, while the fixed pattern or segment display part is driven in a static fashion using driving voltage waveforms in common with the dot matrix display part.Type: GrantFiled: February 3, 1986Date of Patent: August 16, 1988Assignee: Hitachi, Ltd.Inventors: Naofumi Aoyama, Kiyoshige Kinugawa, Yoshihiro Nozaki, Hiroshi Sakurada
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Patent number: 4702560Abstract: A liquid crystal display device comprising a liquid crystal module including liquid crystal display panel having a plurality of liquid crystal picture elements arranged in a matrix form, and driving circuits for applying driving signals to signal electrodes and to scanning electrodes of the liquid crystal display panel, respectively; a control circuit for controlling the operation of the liquid crystal module; a first circuit for dividing frequency of a timing signal given by the control circuit and producing a first signal of lower frequency; and a second circuit for inverting the first signal of lower frequency once per frame period and generating a second signal to reverse the polarity of voltages applied to liquid crystal display elements with its period .tau..sub.M" satisfying the inequality2.0.ltoreq..tau..sub.F (the frame period)/.tau..sub.M" .ltoreq.6.0.Type: GrantFiled: October 9, 1985Date of Patent: October 27, 1987Assignee: Hitachi, Ltd.Inventors: Shyusuke Endo, Naofumi Aoyama, Toshihiko Yabuuchi, Toshiyuki Sakuma, Kiyoshige Kinugawa
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Patent number: 4701025Abstract: Between a liquid crystal module and a control circuit for controlling said liquid crystal module, there are provided that a counter circuit for counting down a timing signal given by said control circuit and an exclusive-OR circuit whose inputs are square wave pulses delivered from said counter circuit and square wave pulses given by said control circuit with a period of twice the frame period. The polarity of voltages applied to liquid crystal module is reversed by square wave pulses delivered from the exclusive-OR circuit with frequency higher than the frame frequency.Type: GrantFiled: August 19, 1985Date of Patent: October 20, 1987Assignee: Hitachi, Ltd.Inventors: Shyusuke Endo, Naofumi Aoyama, Toshihiko Yabuuchi, Toshiyuki Sakuma, Kiyoshige Kinugawa
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Patent number: 4414545Abstract: A liquid crystal display character generator circuit comprises a first RAM for temporarily storing information to be displayed on a liquid crystal display unit, a ROM for storing standard character patterns corresponding to the information to be displayed, a second RAM operable to store special character patterns corresponding to the information to be displayed, and a data selector for enabling the designation of an address in one of the ROM and the second RAM in accordance with the information stored in the first RAM.Type: GrantFiled: December 9, 1981Date of Patent: November 8, 1983Assignee: Hitachi, Ltd.Inventors: Hiroshi Sakurada, Naofumi Aoyama