Patents by Inventor Masaru Saeki
Masaru Saeki 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: 6664332Abstract: A resin composition suitable for forming ink receptive layer of recording sheets and having excellent ink receptivity, feathering prevention, gloss and weatherability, which comprises (A) an oxyalkylene group-containing polyvinyl alcohol resin and (B) a cationic group-containing polyvinyl alcohol resin, wherein a 15% by weight aqueous solution of the resin composition has a transparency according to JIS K 6726 of at least 50%.Type: GrantFiled: July 17, 2002Date of Patent: December 16, 2003Assignee: The Nippon Synthetic Chemical Industry Co., Ltd.Inventor: Masaru Saeki
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Publication number: 20030040573Abstract: A resin composition suitable for forming ink receptive layer of recording sheets and having excellent ink receptivity, feathering prevention, gloss and weatherability, which comprises (A) an oxyalkylene group-containing polyvinyl alcohol resin and (B) a cationic group-containing polyvinyl alcohol resin, wherein a 15% by weight aqueous solution of the resin composition has a transparency according to JIS K 6726 of at least 50%.Type: ApplicationFiled: July 17, 2002Publication date: February 27, 2003Applicant: The Nippon Synthetic Chemical Industry Co., Ltd.Inventor: Masaru Saeki
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Publication number: 20020019200Abstract: A mirror surface grinding method processes an optical glass material into a lens shape using a cup-shaped grinding stone. The grinding stone is pupplied with a polishing solution which contains charged fine particles, thereby electrically attaching the charged fine particles to the grinding stone. The grinding stone is rotated and moved relative to the optical glass material along a final shape to be generated from the optical glass material, thereby grinding an unnecessary portion of the optical glass material to remove it, using a peripheral face portion of the grinding stone, and at the same time polishing the final shape surface of the optical glass material using charged fine particles attached to an annular face portion of the rotating and moving grinding stone.Type: ApplicationFiled: April 5, 2001Publication date: February 14, 2002Applicant: OLYMPUS OPTICAL CO., LTD.Inventors: Junichi Ikeno, Takayuki Kishida, Masaru Saeki
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Patent number: 6250992Abstract: A mirror surface grinding method processes an optical glass material into a lens shape using a cup-shaped grinding stone. The grinding stone is pupplied with a polishing solution which contains charged fine particles, thereby electrically attaching the charged fine particles to the grinding stone. The grinding stone is rotated and moved relative to the optical glass material along a final shape to be generated from the optical glass material, thereby grinding an unnecessary portion of the optical glass material to remove it, using a peripheral face portion of the grinding stone, and at the same time polishing the final shape surface of the optical glass material using charged fine particles attached to an annular face portion of the rotating and moving grinding stone.Type: GrantFiled: March 31, 1998Date of Patent: June 26, 2001Assignee: Olympus Optical Co., Ltd.Inventors: Junichi Ikeno, Takayuki Kishida, Masaru Saeki
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Patent number: 5977273Abstract: A dispersing stabilizer suitable for suspension polymerization of vinyl chloride or a monomer mixture mainly composed of vinyl chloride which can be used in a hot water charging polymerization process without any problems, and which can produce vinyl chloride homopolymer or copolymers having a good porosity, a large bulk density, a very low content of coarse particles and good physical properties, the dispersing stabilizer comprising a polyvinyl alcohol having a degree of hydrolysis of 75 to 85% by mole, an absorbance of not less than 0.1 measured at a wavelength of 280 m.mu.with respect to the 0.1% by weight aqueous solution, a content of carboxyl group of 0.01 to 0.15% by mole and a cloud point of not less than 50.degree. C. measured with respect to the 0.Type: GrantFiled: May 8, 1998Date of Patent: November 2, 1999Assignee: Nippon Gohsei Kagaku Kogyo Kabushiki KaishaInventors: Masaru Saeki, Kizo Onishi, Shunro Hayashi
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Patent number: 5780547Abstract: A dispersing stabilizer suitable for suspension polymerization of vinyl chloride or a monomer mixture mainly composed of vinyl chloride which can be used in a hot water charging polymerization process without any problems, and which can produce vinyl chloride homopolymer or copolymers having a good porosity, a large bulk density, a very low content of coarse particles and good physical properties, the dispersing stabilizer comprising a polyvinyl alcohol having a degree of hydrolysis of 75 to 85% by mole, an absorbance of not less than 0.1 measured at a wavelength of 280 m.mu. with respect to the 0.1% by weight aqueous solution, a content of carboxyl group of 0.01 to 0.15% by mole and a cloud point of not less than 50.degree. C. measured with respect to the 0.1% by weight aqueous solution.Type: GrantFiled: March 17, 1995Date of Patent: July 14, 1998Assignee: Nippon Gohsei Kagaku Kogyo Kabushiki KaishaInventors: Masaru Saeki, Kizo Onishi, Shunro Hayashi
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Patent number: 5158810Abstract: A melt-molded article such as water soluble fibers, a laminate and a container for waste matter, the article having biodegradability. The melt molded article is produced by melt-molding a composition comprising an oxyalkylene group-containing vinyl alcohol copolymer and starch or a starch-derived macromolecular substance.Type: GrantFiled: September 4, 1991Date of Patent: October 27, 1992Assignee: Nippon Gohsei Kagaku Kogyo Kabushiki KaishaInventors: Tsukasa Oishi, Masaru Saeki, Munetoshi Tomita
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Patent number: 4714767Abstract: A process for separating basic amino acids from a liquid containing the same using cation exchange resin towers in series, which comprises effecting repetitive adsorption and elution steps in sequence, wherein the washing water employed in said adsorption and elution steps is obtained by recycling the latter portion of a liquid discharged from a first tower of the adsorption step into an adsorption step in a subsequent cycle, or by recycling a liquid discharged from a first tower at the elution step into an elution step in a subsequent cycle.Type: GrantFiled: July 11, 1985Date of Patent: December 22, 1987Assignee: Ajinomoto Co., Inc.Inventors: Kiyoshi Tanaka, Masaru Saeki, Tsutomu Matsuishi, Yoshihiro Koga, Tetsuya Kawakita
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Patent number: 4711722Abstract: A method for preventing fouling of an electrodialysis membrane when conducting desalting of an inorganic salt-containing aqueous solution containing electrodialysis membrane-fouling substances, which is characterized by adjusting the pH of the solution to the isoelectric points of the fouling substances.Type: GrantFiled: January 27, 1986Date of Patent: December 8, 1987Assignee: Ajinomoto Co., Inc.Inventors: Seiji Toyoshi, Tomoya Yoshizumi, Masaru Saeki, Tetsuya Kawakita
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Patent number: 4663048Abstract: A method for separating a basic amino acid from its fermentation broth, or the liquid resulting from the intermediate treatment of the fermentation broth, containing high-molecular weight contaminants which entails permeating the broth, or liquids resulting from the intermediate treatment of the broth, through a semi-permeable membrane, until the basic amino acid is separated from the high-molecular weight contaminants, by passing through the membrane in the permeate; contacting the permeate with a strongly acidic cation exchange resin; and eluting the adsorbed basic amino acid from the cation exchange resin.Type: GrantFiled: March 20, 1985Date of Patent: May 5, 1987Assignee: Ajinomoto Co., Inc.Inventors: Kiyoshi Tanaka, Yoshihiro Koga, Masaru Saeki, Tetsuya Kaneko, Tetsuya Kawakita
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Patent number: 4617155Abstract: An equimolar salt of lysine and 2-hydroxy-4-methylthiobutyric acid is disclosed along with a process of preparing this salt.Type: GrantFiled: February 12, 1985Date of Patent: October 14, 1986Assignee: Ajinomoto Co., Inc.Inventors: Kiyoshi Tanaka, Yoshihiro Koga, Masaru Saeki, Tetsuya Kaneko, Tetsuya Kawakita
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Patent number: 4601829Abstract: A process for purifying lysine in a lysine production process, which involves passing a solution containing lysine over a cation exchange resin such that lysine adsorbs onto the resin, eluting adsorbed lysine from the resin with an aqueous solution of ammonia to produce a lysine-containing elution liquid, passing the elution liquid directly to a reverse osmosis membrane system, and concentrating the lysine-containing elution liquid with the reverse osmosis membrane system such that ammonia is selectively removed from the lysine containing elution; the aqueous ammonia which is separated from the lysine may be recycled through the cation exchange resin to regenerate the resin or to elute more lysine from the resin.Type: GrantFiled: December 24, 1984Date of Patent: July 22, 1986Assignee: Ajinomoto Co., Inc.Inventors: Tetsuya Kaneko, Masaru Saeki, Kiyoshi Tanaka, Tetsuya Kawakita
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Patent number: 4543330Abstract: A process for the production of a fermentation starting material from cane molasses which comprises: inverting most of the sugar contained in cane molasses either enzymatically with invertase or with a mineral acid, passing the cane molasses containing invert sugar through a column containing a cation exchange resin, eluting invert sugar from the resin with water (pH 5-8), and obtaining an eluate fraction containing the invert sugar to be used as a carbon source for the production of L-glutamic acid by a fermentation technique.Type: GrantFiled: January 3, 1984Date of Patent: September 24, 1985Assignee: Ajinomoto Co., Inc.Inventors: Hideyuki Morimoto, Masaru Saeki, Tetsuya Kawakita
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Patent number: 4523999Abstract: A method for removing impurities including humic substances, gums, polysaccharides, proteins or a mixture thereof from an amino acid fermented liquor obtained from cane, beet molasses, or a mixture thereof, said amino acid being selected from the group consisting of glutamic acid, lysine, and a mixture thereof; said method comprising:(a) adjusting the pH of the fermented liquor to a value of from 2-5 to precipitate said impurities, said impurities having an isoelectric point falling within a pH range of 2-5;(b) ultrafiltering said impurities from said fermented liquor using a semipermeable ultrafiltration membrane.Type: GrantFiled: December 16, 1983Date of Patent: June 18, 1985Assignee: Ajinomoto Co., Inc.Inventors: Seiji Toyoshi, Tetsuo Tanegawa, Masaru Saeki, Tetsuya Kawakita