Patents by Inventor Akio Osabe
Akio Osabe 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: 6853431Abstract: An improved liquid crystal device and manufacturing method for same are described. In the device, a pair of substrates, between which a liquid crystal layer is disposed, is joined with pillars inbetween functioning as spacers which are provided of photocurable resin by photolithography. With this structure, the spacers can be in surface contact with the inside surfaces of the substrates on which electrode arrangement and active devices are formed.Type: GrantFiled: November 27, 2002Date of Patent: February 8, 2005Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Masahiko Sato, Masakazu Odaka, Akira Mase, Toru Takayama, Kaoru Tabata, Chizuru Ishigaki, Ippei Kobayashi, Toshimitsu Konuma, Toshiharu Yamaguchi, Toshio Watanabe, Osamu Aoyagi, Hiroyuki Sakayori, Akio Osabe, Shunpei Yamazaki
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Publication number: 20030071957Abstract: An improved liquid crystal device and manufacturing method for same are described. In the device, a pair of substrates, between which a liquid crystal layer is disposed, is joined with pillars inbetween functioning as spacers which are provided of photocurable resin by photolithography. With this structure, the spacers can be in surface contact with the inside surfaces of the substrates on which electrode arrangement and active devices are formed.Type: ApplicationFiled: November 27, 2002Publication date: April 17, 2003Applicant: Semiconductor Energy Laboratory Co., Ltd.Inventors: Masahiko Sato, Masakazu Odaka, Akira Mase, Toru Takayama, Kaoru Tabata, Chizuru Ishigaki, Ippei Kobayashi, Toshimitsu Konuma, Toshiharu Yamaguchi, Toshio Watanabe, Osamu Aoyagi, Hiroyuki Sakayori, Akio Osabe, Shunpei Yamazaki
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Patent number: 6511720Abstract: R1—(A1)m—Z1—A2—(Z2—A3)n—W—SiXaYbZc I in which R1, A1, A2, A3, Z1, R1, Z2, W, X, Y, Z, m, n, a, b and c are as defined below, can be used to produce homeotropic alignment of liquid-crystalline phases on surfaces.Type: GrantFiled: May 2, 2001Date of Patent: January 28, 2003Assignee: Merck Patent Geselleschaft mit Beschrankter HaftungInventors: Detlef Pauluth, Matthias Bremer, Edgar Böhm, Akio Osabe, Gerhard Herget, Wolfgang Hechler
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Patent number: 6493057Abstract: An improved liquid crystal device and manufacturing method for same are described. In the device, a pair of substrates, between which a liquid crystal layer is disposed, is joined with pillars inbetween functioning as spacers which are provided of photocurable resin by photolithography. With this structure, the spacers can be in surface contact with the inside surfaces of the substrates on which electrode arrangement and active devices are formed.Type: GrantFiled: July 2, 1999Date of Patent: December 10, 2002Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Masahiko Sato, Toshimitsu Konuma, Masakazu Odaka, Toshiharu Yamaguchi, Toshio Watanabe, Osamu Aoyagi, Kaoru Tabata, Chizuru Isigaki, Hiroyuki Sakayori, Ippei Kobayashi, Akio Osabe, Shunpei Yamazaki, Toru Takayama, Akira Mase
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Publication number: 20020136845Abstract: R1—(A1)m-Z1-A2- (Z2-A3)n—W—SiXaYbZc IType: ApplicationFiled: May 2, 2001Publication date: September 26, 2002Inventors: Detlef Pauluth, Matthias Bremer, Edgar Bohm, Akio Osabe, Gerhard Herget, Wolfgang Hechler
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Patent number: 6287650Abstract: R1—(A1)m—Z1—A2—(Z2—A3)n—W—SiXaYbZc I in which R1, A1, A2, A3, Z1, R1, Z2, W, X, Y, Z, m, n, a, b and c are as defined below, can be used to produce homeotropic alignment of liquid-crystalline phases on surfaces.Type: GrantFiled: November 5, 1998Date of Patent: September 11, 2001Assignee: Merck Patent Gesellschaft mitInventors: Detlef Pauluth, Matthias Bremer, Edgar Böhm, Akio Osabe, Gerhard Herget, Wolfgang Hechler
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Patent number: 6067139Abstract: The present invention provides a STN LCD device having at least two domains per pixel, comprising:a) a liquid crystal layer having opposite sides;b) a set of electrodes on either side of said liquid crystal layer;c) a fluorinated polyimide alignment film for aligning a liquid crystal layer.Type: GrantFiled: June 25, 1998Date of Patent: May 23, 2000Assignee: E. I. du Pont de Nemours and CompanyInventors: Edgar Bohm, Akio Osabe, Brian Auman, Melvin Zussman
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Patent number: 5963288Abstract: An improved liquid crystal device and manufacturing method for same are described. In the device, a pair of substrates, between which a liquid crystal layer is disposed, is joined with pillars inbetween functioning as spacers which are provided of photocurable resin by photolithography. With this stucture, the spacers can be in surface contact with the inside surfaces of the substrates on which electrode arrangement and active devices are formed.Type: GrantFiled: June 6, 1995Date of Patent: October 5, 1999Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Masahiko Sato, Toshimitsu Konuma, Seiichi Odaka, Toshiharu Yamaguchi, Toshio Watanabe, Osamu Aoyagi, Kaoru Tabata, Chizuru Isigaki, Hiroyuki Sakayori, Ippei Kobayashi, Akio Osabe, Shunpei Yamazaki
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Patent number: 5952676Abstract: An improved liquid crystal device and manufacturing method for same are described. In the device, a pair of substrates, between which a liquid crystal layer is disposed, is joined with pillars inbetween functioning as spacers which are provided of photocurable resin by photolithography. With this structure, the spacers can be in surface contact with the inside surfaces of the substrates on which electrode arrangement and active devices are formed.Type: GrantFiled: June 6, 1997Date of Patent: September 14, 1999Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Masahiko Sato, Toshimitsu Konuma, Seiichi Odaka, Toshiharu Yamaguchi, Toshio Watanabe, Osamu Aoyagi, Kaoru Tabata, Chizuru Isigaki, Hiroyuki Sakayori, Ippei Kobayashi, Akio Osabe, Shunpei Yamazaki
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Patent number: 5379139Abstract: An improved liquid crystal device and manufacturing method for same are described. In the device, a pair of substrates, between which a liquid crystal layer is disposed, is joined with pillars inbetween functioning as spacers which are provided of photocurable resin by photolithography. With this structure, the spacers can be in surface contact with the inside surfaces of :he substrates on which electrode arrangement and active devices are formed.Type: GrantFiled: July 6, 1992Date of Patent: January 3, 1995Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Masahiko Sato, Toshimitsu Konuma, Seiichi Odaka, Toshiharu Yamaguchi, Toshio Watanabe, Osamu Aoyagi, Kaoru Tabata, Chizuru Isigaki, Hiroyuki Sakayori, Ippei Kobayashi, Akio Osabe, Shunpei Yamazaki
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Method of filling a liquid crystal device with introduction of liquid crystal by increasing pressure
Patent number: 5141036Abstract: A method for manufacturing a liquid crystal device in which a pair of substrates are placed in a vacuum chamber, with at least one inlet port provided for communicating with an inner space between the pair of substrates. The vacuum chamber is evacuated and a material including liquid crystals is supplied to the inlet port. The pressure of the chamber is then elevated such that the liquid crystal and other materials are introduced into the space between the pair of substrates by the use of differential pressure between the inside and outside of the space between the substrates. The material including the liquid crystals is maintained at a sufficiently high temperature such that the liquid crystals exhibit isotropic phases.Type: GrantFiled: July 10, 1991Date of Patent: August 25, 1992Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Toshio Watanabe, Masahiko Sato, Akio Osabe, Hiroyuki Sakayori, Akira Mase -
Patent number: 5121238Abstract: A liquid crystal display wherein chromatic aberration is reduced by superimposing an anisotropic film on a ferroelectric liquid crystal where the anisotropic film is located between a pair of polarizing plates and is selected from the group consisting of polycarbonates, polyvinylalcohol, polyacetates, polyethylene, polyester, polyimides, polyamides, polyvinylchloride, and polystyrene.Type: GrantFiled: October 11, 1989Date of Patent: June 9, 1992Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventor: Akio Osabe
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Patent number: 5024255Abstract: An improved method of filling a liquid crystal device with a blended ferroelectric liquid crystal material is disclosed. The method includes the step of disposing the blended ferroelectric liquid crystal material in an inner space formed in the liquid crystal device, with the temperature of the blended liquid crystal being maintained during the disposing step at a temperature higher than the transition temperature of any constituent of the blended liquid crystal material such that the blended liquid crystal material is transformed in its isotropic phase.Type: GrantFiled: July 21, 1988Date of Patent: June 18, 1991Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Toshio Watanabe, Masahiko Sato, Akio Osabe, Hiroyuki Sakayori, Akira Mase
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Patent number: 4922974Abstract: A method of filling a liquid crystal device with a blended liquid crystal material is set forth. The liquid crystal device is filled by disposing the liquid crystal device having an inlet port, in a vacuum chamber, evacuating the vacuum chamber, supplying the inlet port with the blended liquid crystal material, and elevating the pressure in the chamber to allow the blended liquid crystal material to fill the liquid crystal device through the inlet port by virtue of the differential pressure between the inside and the outside of the liquid crystal device, with the temperature of the blended liquid crystal material being maintained, until the liquid crystal device is completely filled with the blended liquid crystal material, at a temperature higher than the transition temperature of any one of the constituents of the blended liquid crystal material so that the blended liquid crystal material is transformed in its isotropic phase.Type: GrantFiled: February 14, 1989Date of Patent: May 8, 1990Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Toshio Watanabe, Akio Osabe, Akira Mase, Hiroyuki Sakayori, Masahiko Sato, Kaoru Tabata
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Patent number: 4922972Abstract: A method of filling a liquid crystal device including a pair of parallel substrates having external surfaces with a liquid crystal material is set forth. The liquid crystal device is filled by disposing the liquid crystal device in a vacuum chamber between a pair of opposed parallel plates, evacuating the vacuum chamber, supplying the liquid crystal material to an inlet of the device, elevating the pressure in the chamber to allow the liquid crystal material to enter a space formed between the parallel substrates through the inlet by virtue of a differential pressure between the inside and the outside of the liquid crystal device, and applying opposed pressure with the parallel plates to the external surfaces of the parallel substrates respectively in order to form a uniform liquid crystal device. With the external pressure being applied to compensate for the expansion of the liquid crystal device during the elevation of the pressure within the vacuum chamber.Type: GrantFiled: March 25, 1988Date of Patent: May 8, 1990Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Toshio Watanabe, Akio Osabe, Akira Mase, Hiroyuki Sakayori, Masahiko Sato, Kaoru Tabata
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Patent number: 4874461Abstract: An improved liquid crystal device and manufacturing method for same are described. In the device, a pair of substrates, between which a liquid crystal layer is disposed, is joined with pillars inbetween functioning as spacers which are provided of photocurable resin by photolithography. With this structure, the spacers can be in surface contact with the inside surfaces of the substrates on which electrode arrangement and active devices are formed.Type: GrantFiled: July 21, 1988Date of Patent: October 17, 1989Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Masahiko Sato, Toshimitsu Konuma, Seiichi Odaka, Toshiharu Yamaguchi, Toshio Watanabe, Osamu Aoyagi, Kaoru Tabata, Chizuru Isigaki, Hiroyuki Sakayori, Ippei Kobayashi, Akio Osabe, Shunpei Yamazaki