Patents by Inventor Masao Takahashi
Masao Takahashi 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: 5013603Abstract: Disclosed is a filler for ink jet recording paper, said filler being composed of amorphous silica having a median diameter, measured by the coulter counter method, of 2 to 15 .mu.m, an oil absorption of at least 180 ml/100 g, a refractive index, measured by the solvent method, of at least 1.450, and a moisture absorption, measured when it is caused to absorb moisture for 200 hours at a relative humidity of 90% and a temperature of 25.degree. C., of at least 35%.Type: GrantFiled: January 22, 1990Date of Patent: May 7, 1991Assignee: Mizusawa Industrial Chemicals, Ltd.Inventors: Masahide Ogawa, Teiji Sato, Masao Takahashi, Toshio Kitsu, Seikichi Takahashi, Kinichi Ono
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Patent number: 5001053Abstract: A method and an apparatus for detecting antigen-antibody reaction are disclosed in which a predetermined antigen or antibody is made to attach to the surface of an oscillator and the oscillator is immersed in the specimen blood so as to cause antigen-antibody reaction on the surface thereof. The oscillator is then made to oscillate and the amount of antibody or antigen attaching to the surface of the oscillator is determined in accordance with the data concerning the oscillation of the oscillator.Type: GrantFiled: September 12, 1988Date of Patent: March 19, 1991Assignee: Nihon Kohden CorporationInventors: Masao Takahashi, Toshihiko Tazawa
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Patent number: 4903099Abstract: A field effect transistor for use as an ion sensor has a P-type silicon substrate on which are formed a source region and a drain region. An N-type isolation diffusion layer is formed on the outer peripheral surface of the silicon substrate and this diffusion layer is surrounded by an insulation layer. According to this arrangement, even when the potential of the electrolyte has been raised to a level which is positive with respect to the silicon substrate, an electrical isolation is established by the reverse dielectric strength exhibited by the P-N junction.Type: GrantFiled: September 28, 1988Date of Patent: February 20, 1990Assignee: Nihon Kohden CorpInventors: Tetsushi Sekiguchi, Tetsuo Hamatani, Hideo Ozawa, Masao Takahashi
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Patent number: 4892591Abstract: Disclosed is a filler for ink jet recording paper, said filler being composed of amorphous silica particles having a median diameter, measured by the coulter counter method, of 2 to 15 .mu.m, an oil absorption of at least 180 ml/100 g, a refractive index, measured by the solvent method, of at least 1.450, and a moisture absorption, measured when it is caused to absorb moisture for 200 hours at a relative humidity of 90% and a temperature of 25.degree. C., of at least 35%, and a coating of a compound of a metal of Group II of the periodic table on the surface of the silica particles in an amount of 0.5 to 20% by weight.Type: GrantFiled: June 3, 1988Date of Patent: January 9, 1990Assignee: Mizusawa Industrial Chemicals Ltd.Inventors: Masahide Ogawa, Teiji Sato, Masao Takahashi, Kazumitsu Enomoto
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Patent number: 4707472Abstract: Cycloartenol ferulate/cyclodextrin complex is prepared by including cycloartenol ferulate, which is a component of .gamma.-oryzanol and hardly soluble in water, with cyclodextrin to thereby elevate its solubility in water and improve its absorption through digestive tracts. Thus various pharmaceutical and physiological effects of cycloartenol ferulate are further improved.Type: GrantFiled: February 28, 1986Date of Patent: November 17, 1987Assignee: Zeria Shinyaku Kogyo Kabushiki KaishaInventors: Tetsuya Inagaki, Hidemi Aoki, Hiroyasu Aikawa, Masao Takahashi
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Patent number: 4547234Abstract: An explosive composition containing micro-voids consisting of thermoplastic resin hollow microspheres coated with a thermosetting resin has a remarkably excellent low temperature detonability in a small diameter cartridge after lapse of a long period of time.Type: GrantFiled: July 5, 1984Date of Patent: October 15, 1985Assignee: Nippon Oil and Fats Company LimitedInventors: Fumio Takeuchi, Masao Takahashi, Hiroshi Sakai
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Patent number: 4534809Abstract: A water-in-oil emulsion explosive composition containing specifically limited hollow microspheres consisting of neutral or weakly acidic hollow microspheres coated with a coating material has a high consistency without deteriorating its storage stability in initiation sensitivity in a small diameter cartridge, and can be safely and easily handled.Type: GrantFiled: August 28, 1984Date of Patent: August 13, 1985Assignee: Nippon Oil and Fats Company LimitedInventors: Fumio Takeuchi, Masao Takahashi, Katsuhide Hattori, Hiroshi Sakai
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Patent number: 4504048Abstract: An apparatus is disclosed which enables a controlled member (e.g. a workpiece retaining member in a jig) to be adjusted in position by extremely small amounts of linear displacement or angular rotation, with a very high degree of accuracy and static and dynamic stability. The apparatus is based on a servo system controlled by electrical signals and employs hydrostatic pads to support and move the controlled member.Type: GrantFiled: November 12, 1982Date of Patent: March 12, 1985Assignee: Citizen Watch Company LimitedInventors: Kazuo Shiba, Masao Takahashi, Akira Kanai, Kouichi Koizumi
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Patent number: 4494282Abstract: A jig table apparatus for a machine tool is provided. The apparatus comprises first and second jig tables for holding workpieces thereon. A base for positioning adjacent a machine tool and elevating table are provided at a work station for supporting and raising and lowering one of the jig tables at the work station. Also provided is a turntable, a work attaching and detaching station for supporting one of the jig tables and for moving the jig tables to a position for removing a workpiece therefrom and for placing a workpiece thereon, and a transfer device is mounted on the base for moving the first and second jig tables between the working station and the work attaching and detaching stations. The transfer device includes claw members which are coupled to the elevating table and are responsive to the movement thereof, such that the claw members are moved to an engaging position when the elevating table is raised and to a disengaging position when the table is lowered.Type: GrantFiled: February 1, 1982Date of Patent: January 22, 1985Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Jinsei Ida, Yosio Hagimoto, Masao Takahashi, Saburo Azuma
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Patent number: 4482403Abstract: A water-in-oil emulsion explosive composition containing an emulsifier consisting of a mixture of sorbide, sorbitan and sorbitol fatty acid esters in a specifically limited mixing ratio, has an improved storage stability in initiation sensitivity in small diameter cartridges and at low temperatures and further has an improved resistance against dead pressing.Type: GrantFiled: March 20, 1984Date of Patent: November 13, 1984Assignee: Nippon Oil and Fats Company, LimitedInventors: Fumio Takeuchi, Masao Takahashi, Hiroshi Sakai
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Patent number: 4476169Abstract: A multilayer glass structure constructed by joining the edge portions of a plurality of glass sheets by a sealant through spacers having an adsorbent filled therein. According to this invention, the adsorbent comprises a combination of a granular zeolite composed of a core of a synthetic zeolite/clay binder mixture containing the synthetic zeolite in an amount larger than its average content in the granular zeolite and a shell of a synthetic zeolite/clay binder mixture containing the clay in an amount larger than its average content in the granular zeolite, with granular activated carbon having on its surface 1 to 20% by weight, based on the activated carbon, of a coating of a synthetic resin latex. The adsorbent can effectively adsorb water vapor and the vapor of an organic solvent evaporated from the sealant, and prevent dew deposition on the glass surface. Moreover, it does not yield dust even when the glass structure is handled under severe conditions.Type: GrantFiled: June 22, 1982Date of Patent: October 9, 1984Assignees: Takeda Chemical Industries, Ltd., Mizusawa Kagaku Kogyo Kabushiki KaishaInventors: Hiroshi Nishino, Fumiichi Ogino, Tetsuo Masuko, Kunio Goto, Masao Takahashi
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Patent number: 4420419Abstract: Disclosed is an abrasion-resistant granular zeolite formed from a mixture of a synthetic zeolite and a clay binder, said granular zeolite comprising a core composed of a synthetic zeolite clay binder mixture containing the synthetic zeolite at a content higher than the average synthetic zeolite content in the granular zeolite and a shell composed of a synthetic zeolite-clay binder mixture containing the clay binder at a content higher than the average clay binder content in the granular zeolite.This granular zeolite is excellent in both the zeolitic characteristics such as adsorbability and ion exchange capacity and the mechanical strength characteristics such as abrasion resistance and compression strength.Type: GrantFiled: March 8, 1982Date of Patent: December 13, 1983Assignee: Mizusawa Kagaku Kogyo Kabushiki KaishaInventors: Masahide Ogawa, Tetsuo Masuko, Kunio Goto, Hideo Sugai, Masao Takahashi
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Patent number: 4414044Abstract: A water-in-oil emulsion explosive composition comprising an aqueous solution of ammonium nitrate alone or in admixture with the other inorganic oxidizer salt, fuel oil and/or wax, an emulsifier of dipentaerythritol fatty acid ester, polyoxyalkylenedipentaerythritol fatty acid ester, sugar fatty acid ester, polyoxyalkylenesugar fatty acid ester or sorbitol fatty acid ester, and hollow microspheres or microbubbles, has excellent storage stability in the detonation sensitivity in a small diameter cartridge and at low temperature.Type: GrantFiled: April 27, 1982Date of Patent: November 8, 1983Assignee: Nippon Oil and Fats, Co., Ltd.Inventors: Fumio Takeuchi, Masao Takahashi
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Patent number: 4394763Abstract: An error-correcting system is disclosed, which is located between a main memory and a central processing unit. The system includes a relief bit memory, an ECC or Error Correction Code logic circuit, a switching circuit and a correction controlling circuit. The ECC logic circuit detects the occurrence of a soft error and a hard error. When a hard error occurs in the memory, the defective memory cell thereof is switched to the relief bit memory. Accordingly, data to be written into the main memory or the relief bit memory is switched by means of the switching circuit. Similarly, data to be read from the main memory or the relief bit memory is also switched by the switching circuit. The data to be stored in the relief bit memory is validated by means of the ECC logic circuit and the switching circuit. Further, the (n+1)-bit soft and hard errors are reduced to n-bit soft and hard errors by means of the ECC logic circuit and the switching circuit.Type: GrantFiled: April 24, 1981Date of Patent: July 19, 1983Assignee: Fujitsu LimitedInventors: Genzo Nagano, Masao Takahashi
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Patent number: 4394198Abstract: A water-in-oil emulsion explosive composition having a remarkably improved storage stability in its initiation sensitivity in small diameter cartridges and at low temperatures is disclosed. The explosive composition comprises a disperse phase formed of an aqueous oxidizer solution consisting of (a) ammonium nitrate or a mixture of ammonium nitrate and another oxidizer salt, (b) water and (c) a specifically limited weak acid salt or condensed phosphate; a continuous phase consisting of (d) fuel oil and/or wax; (e) an emulsifier; and (f) hollow microspheres or microbubbles.Type: GrantFiled: August 17, 1981Date of Patent: July 19, 1983Assignee: Nippon Oil and Fats Company, LimitedInventors: Fumio Takeuchi, Masao Takahashi
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Patent number: 4351738Abstract: A yarn treating composition useful for application to a filamentary yarn for high-speed friction draw-false twisting. This composition comprises substantially a polyether having a molar copolymerization ratio between propylene and ethylene oxides of 35:65-90:10 and an average molecular weight of 1,000 to 15,000, and small amounts of anionic compounds. The anionic compounds are used in the form of a mixture of salts of specific dicarboxylic acid derivatives with phosphate compounds and/or sulfonate compounds. The application of said treating composition to yarns provides a reduction of fluctuation in friction between the yarns and rollers, guides, etc. and of frictional resistance at a high running speed, improvement in threading property in false twisting, and a sharp decrease in scum deposits on heaters.Type: GrantFiled: August 21, 1980Date of Patent: September 28, 1982Assignee: Teijin LimitedInventors: Masao Takahashi, Katumi Yoshida, Shinji Ohwaki, Hiroyuki Moriga
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Patent number: 4326900Abstract: Water-in-oil emulsion explosive compositions containing (e) nitromethane gelatinized product obtained by mixing nitromethane with a gelatinizer for nitromethane and (f) hollow microspheres and/or (g) bubbles formed from a chemical foaming agent in a water-in-oil emulsion composition consisting of (a) ammonium nitrate or ammonium nitrate and the other inorganic oxidizer salts, (b) water, (c) an oil and/or wax and (d) a sorbitan fatty acid ester surfactant.Type: GrantFiled: November 27, 1979Date of Patent: April 27, 1982Assignee: Nippon Oil and Fats Company LimitedInventors: Katsuhide Hattori, Yoshiaki Fukatsu, Masao Takahashi
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Patent number: 4315784Abstract: A water-in-oil emulsion explosive composition consisting of ammonium nitrate or a mixture of ammonium nitrate and the other inorganic oxidizer salts, water, oil and/or wax, 1-hydroxyethyl-2-imidazoline derivative as an emulsifier and at least one of hollow microsphere and bubbles generated from a chemical foaming agent is excellent in the emulsion stability in storage, low temperature detonability and explosion reactivity.Type: GrantFiled: November 27, 1979Date of Patent: February 16, 1982Assignee: Nippon Oil and Fats Company, LimitedInventors: Katsuhide Hattori, Yoshiaki Fukatsu, Masao Takahashi
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Patent number: 4315787Abstract: A water-in-oil emulsion explosive composition consisting of ammonium nitrate or a mixture of ammonium nitrate and the other inorganic oxidizer salts, water, oil and/or wax, at least one emulsifier of the group consisting of potassium octadecylsulfonate and sodium N-methyl-N-alkyl(beef tallow)-taurate and at least one of hollow microspheres and bubbles generated from a chemical foaming agent is excellent in the emulsion stability in storage, detonability at low temperature, explosion reactivity and sympathetic detonability.Type: GrantFiled: March 31, 1980Date of Patent: February 16, 1982Assignee: Nippon Oil and Fats Co. Ltd.Inventors: Katsuhide Hattori, Yoshiaki Fukatsu, Masao Takahashi
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Patent number: D292629Type: GrantFiled: February 25, 1985Date of Patent: November 3, 1987Assignee: Hitachi, Ltd.Inventors: Gen Nagai, Takao Ohsawa, Hideki Takayama, Masao Takahashi