Patents by Inventor Susumu Tanaka
Susumu Tanaka 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: 5882452Abstract: Means for measuring deviation measures a vertical deviation of a green tire from circularity while the green tire is clamped by a green tire building drum. The green tire to be formed is shaped into a complete circle according to the measured value.Type: GrantFiled: June 11, 1997Date of Patent: March 16, 1999Assignee: Sumitomo Rubber Industries, Ltd.Inventors: Masayuki Sakamoto, Takuya Mizuta, Seiki Yamada, Kazuya Suzuki, Susumu Tanaka, Yukio Endo, Toshihiko Omokawa
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Patent number: 5873956Abstract: In order to provide rolling bearings of high performance using case hardened stainless steels that are superior to the conventional martensite base stainless steels in terms of corrosion resistance, rolling fatigue strength and wear resistance and which also have high core toughness, at least one member of the rolling bearing selected from among the inner race, the outer race and the rolling elements is made of an alloy steel consisting essentially of less than 0.5 wt % C, 8.0 to 20.0 wt % Cr, 0.1 to 1.5 wt % Mn, 0.1 to 2.0 wt % Si and the balance of Fe and incidental impurity elements; the relationship between the C and Cr contents satisfies 0.04 Cr (wt %)-0.39.ltoreq.C (wt %).ltoreq.-0.05 Cr (wt %)+1.41; the bearing also has a surface layer that is formed by nitriding or carbonitriding at a temperature below Ac.sub.1, subsequent heating at a temperature of 900.degree. to 1,200.degree. C., hardening, a subzero treatment and tempering.Type: GrantFiled: February 21, 1997Date of Patent: February 23, 1999Assignee: NSK Ltd.Inventors: Susumu Tanaka, Kenji Yamamura, Manabu Ohori
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Patent number: 5678157Abstract: A main body of a regenerating apparatus of a recording medium has a conveyor mechanism which conveys a recording medium to be regenerated along a conveyance passage. A cleaning unit is removably mounted on the main body for easy maintenance, cleaning or replacement. Preferably, the cleaning unit has a U-shaped conveyance passage of the recording medium filled up with a cleaning liquid, and an image removing mechanism which applies a physical treatment to the surface of the recording medium. The recording medium is taken in the U-shaped conveyance passage, immersed in the cleaning liquid so that the image on the recording medium is swollen and removed by the image removing mechanism. The image removing mechanism may include a web impregnated with cleaning liquid brought into contact with the recording medium by a roller which may have a built-in heater to cause the printing material on the recording medium to swell and be scraped off by the web.Type: GrantFiled: October 27, 1994Date of Patent: October 14, 1997Assignee: Minolta Co., Ltd.Inventors: Masazumi Yoshida, Junji Machida, Susumu Tanaka, Kaoru Furusawa
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Patent number: 5672014Abstract: A rolling bearing has components of an inner race, an outer race and rolling elements, one of the components being formed of an alloy steel containing 0.1-1.0 wt % of C, 0.1-1.5 wt % of Si, 0.1-1.5 wt % of Mn and 0.1-3.0 wt % of Cr, the alloy steel being carbonitrided and then ground to form a surface layer having a carbon and a nitrogen concentration of 0.6-1.5 wt % and 0.05-0.9 wt %, respectively. The surface layer has an appropriate amount of retained austenite .gamma..sub.R and is sufficiently hard to insure long life even under lubrication in the presence of foreign matter. By optimizing the choice of constituent materials, processing methods and heat treatments for each of the rolling elements and the inner and outer races, rolling bearings that have high performance can be produced at low cost.Type: GrantFiled: September 29, 1995Date of Patent: September 30, 1997Assignee: NSK Ltd.Inventors: Shigeru Okita, Nobuaki Mitamura, Susumu Tanaka, Kenji Yamamura, Manabu Ohori
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Patent number: 5621939Abstract: An apparatus for regenerating a recording medium has a feeder which feeds a recording medium, a transporter which transports the recording medium, an immersion bath for containing a cleaning liquid for swelling prints and immersing the recording medium in the cleaning liquid, a print remover which removes the prints by subjecting the surface of the recording medium to a physical treatment, and a fluidizing structure for fluidizing the cleaning liquid in a direction opposite to a direction in which the recording medium is transported in the immersion bath.Type: GrantFiled: January 3, 1994Date of Patent: April 22, 1997Assignee: Minolta Co., Ltd.Inventors: Masazumi Yoshida, Susumu Tanaka, Junji Machida, Kaoru Furusawa
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Patent number: 5612302Abstract: The present invention provides a cleaning solution for recycling a waste copy paper with toner-images formed on the surface of the copy paper, comprising water, a monoester of bivalent organic acid, a surface active agent and an organic acid.Type: GrantFiled: January 3, 1994Date of Patent: March 18, 1997Assignee: Minolta Camera Kabushiki KaishaInventors: Masazumi Yoshida, Susumu Tanaka, Junji Machida
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Patent number: 5547798Abstract: To provide a toner resin composition and toner which has superior anti-offset properties, low temperature fixability and anti-blocking properties, and gives sufficiently stable high-quality images even when copying is done over a long duration of time. This toner resin composition is a toner resin composition comprising a low molecular weight vinyl polymer component and a high molecular weight vinyl polymer component which comprising styrene-type monomers and (meth)acrylic esters as structural units of said polymer components and having peaks of the molecular weight distribution in the region of molecular weights from about 4.times.10.sup.3 to about 8.times.10.sup.4 and in the region of molecular weights from about 1.times.10.sup.5 to about 4.times.10.sup.Type: GrantFiled: November 14, 1994Date of Patent: August 20, 1996Assignee: Sekisui Chemical Co., Ltd.Inventors: Tatsuo Suzuki, Susumu Tanaka, Takashi Ueyama
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Patent number: 5542985Abstract: A method for cleaning waste paper by removing toner-images formed thereon. An emulsion formed cleaning solution, which has a water component, an organic solvent dissolving a resin component, and a surface active agent to form a solution into the emulsion, is applied to the waste paper. The waste paper has a toner-image which is formed by toner-particles which have a resin component. The distance between the fibers of the paper is widened by the water component of the cleaning solution. The resin component of the toner is dissolved by the organic solvent of the cleaning solution.Type: GrantFiled: January 20, 1995Date of Patent: August 6, 1996Assignee: Minolta Camera Kabushiki KaishaInventors: Junji Machida, Masazumi Yoshida, Susumu Tanaka
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Patent number: 5537307Abstract: A control device for a system interconnection inverter. The control device includes an active/reactive current reference generator and an active/reactive current detector for detecting an output AC current of the inverter. The control device further includes a phase detector, a frequency detector, and a voltage amplitude detector of the AC voltage of the inverter. The control device also includes a frequency reference generator and a voltage amplitude reference generator. The control device also includes a frequency correction computing circuit and a voltage amplitude correction computing circuit. The control device further includes an adder for adding the active current reference signal and the voltage amplitude correction signal to output as an active current correction reference signal, and for adding the reactive current reference signal and the frequency correction signal to output as a reactive current correction signal.Type: GrantFiled: June 1, 1995Date of Patent: July 16, 1996Assignees: Kabushiki Kaisha Toshiba, The Tokyo Electric Power Company, IncorporatedInventors: Syunichi Hirose, Nobukazu Takashima, Susumu Tanaka, Tatsuro Yamaguchi, Hidetaka Sato, Minoru Abe, Masahito Ooyama
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Patent number: 5494522Abstract: A plasma process system for producing gas plasma in an air-tight chamber by high frequency power to process a substrate with the gas plasma comprising a lower electrode on which the substrate to be plasma-processed is mounted, an upper electrode arranged above the lower electrode, a plasma generator circuit for generating plasma between the upper and the lower electrode, a power source for supplying high frequency power to the plasma generator circuit, and bias generator for generating negative voltage in the upper or lower electrode when high frequency power is supplied from the power source to the upper or lower electrode, wherein the plasma generator circuit includes transformer for supplying a part of high frequency power, which is supplied from the power source, to the bias generator.Type: GrantFiled: March 17, 1994Date of Patent: February 27, 1996Assignee: Tokyo Electron LimitedInventors: Shuji Moriya, Masahiro Ogasawara, Jun Yashiro, Yoshifumi Tahara, Satoru Kawakami, Susumu Tanaka
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Patent number: 5492787Abstract: A resin composition for toners with excellent characteristics is provided. The composition comprises, as principal components, a resin (A) containing carboxyl groups and a resin (B) containing glycidyl or .beta.-methylglycidyl groups, wherein the resin (A) is obtained by a reaction between a multivalent metal compound (m) and copolymer .alpha., said copolymer .alpha. being obtained from a styrene type monomer (a), a (meth)acrylic ester monomer (b), and a vinyl type monomer (c) containing carboxyl groups, and the resin (B) is copolymer .beta. obtained from a vinyl type monomer (d) containing glycidyl or .beta.-methylglycidyl groups and another vinyl type monomer (e).Type: GrantFiled: February 6, 1995Date of Patent: February 20, 1996Assignee: Sekisui Kagaku Kogyo Kabushiki KaishaInventors: Takayoshi Matsunaga, Susumu Tanaka, Yoshiyuki Kosaka, Tatsuo Suzuki, Masazumi Okudo
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Patent number: 5476739Abstract: The present invention relates to a method for fixing images formed by a printing material containing a resin component on a recording medium, comprising:a first step of providing the printing material to the recording medium to form the images, anda second step of contacting the printing material provided on the recording medium with a fixing solution to fix the printing material on the recording medium, the fixing solution comprising a monoester of bivalent organic acid.Type: GrantFiled: June 27, 1994Date of Patent: December 19, 1995Assignee: Minolta Camera Kabushiki KaishaInventors: Yasuko Takama, Susumu Tanaka, Kaoru Furusawa
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Patent number: 5423503Abstract: A plate-like member conveying apparatus includes five holding arms arranged parallel to each other in one direction and capable of supporting wafers, a link mechanism for connecting said holding arms to each other and for, when at least one holding arm is moved in the one direction, moving the remaining holding arms such that the pitch thereamong is equal, and a nut-screw driving mechanism for moving the at least one holding arm in the one direction.Type: GrantFiled: May 5, 1993Date of Patent: June 13, 1995Assignee: Tokyo Electron Sagami LimitedInventors: Susumu Tanaka, Takanobu Asano, Hisashi Kikuchi, Noboru Sato
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Patent number: 5422217Abstract: Disclosed herein is a resin composition for toner mainly composed of a graft polymer which is formed by (a) 90 to 99.9 percent by weight of a copolymer formed by copolymerizing a styrene monomer and (meth)acrylic ester to contain at least 50 percent by weight of the styrene monomer and (b) 0.1 to 10 percent by weight of an ethylene-vinyl acetate copolymer having a saponification value of 10 to 30 and a softening point of 70.degree. to 200.degree. C. This resin composition is prepared by graft-polymerizing the copolymer (a) and the ethylene-vinyl acetate copolymer (b) under presence of a peroxide polymerization initiator. When a polyvalent metal compound (c) is employed, 85 to 99.9 percent by weight of the copolymer (a) and 0.1 to 10 percent by weight of the ethylene-vinyl acetate copolymer (b) are graft-polymerized under presence of 0.01 to 5 percent by weight of the polyvalent metal compound (c) and a peroxide polymerization initiator.Type: GrantFiled: January 5, 1993Date of Patent: June 6, 1995Assignee: Sekisui Kagaku Kogyo Kabushiki KaishaInventors: Takashi Ueyama, Susumu Tanaka, Yoshiyuki Kosaka, Masazumi Okudo
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Patent number: 5408011Abstract: Disclosed is a novel polymeric compound poly(benzoic acid) which is a linear polymer consisting of the 1,4-phenylene linkages, each phenylene group having a carboxyl group. Poly(benzoic acid) can be prepared by hydrolyzing a poly(alkyl benzoate) in the presence of an acid or alkali. The thus obtained poly(benzoic acid) can be converted into a poly(p-phenylene) by the decarbonation reaction thereof in an organic solvent such as quinoline in the presence of metallic copper dust or a copper (II) compound such as copper (II) oxide and copper (II) carbonate hydroxide.Type: GrantFiled: February 24, 1994Date of Patent: April 18, 1995Assignee: Japan, as represented by Director General of Agency of Industrial Science and TechnologyInventors: Susumu Tanaka, Kyoji Kaeriyama
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Patent number: 5312874Abstract: Disclosed is a novel polymeric compound poly(benzoic acid) which is a linear polymer consisting of the 1,4-phenylene linkages, each phenylene group having a carboxyl group. Poly(benzoic acid) can be prepared by hydrolyzing a poly(alkyl benzoate) in the presence of an acid or alkali. The thus obtained poly(benzoic acid) can be converted into a poly(p-phenylene) by the decarbonation reaction thereof in an organic solvent such as quinoline in the presence of metallic copper dust or a copper (II) compound such as copper (II) oxide and copper (II) carbonate hydroxide.Type: GrantFiled: September 7, 1993Date of Patent: May 17, 1994Assignee: Japan as represented by Director General of Agency of Industrial Science and TechnologyInventors: Susumu Tanaka, Kyoji Kaeriyama
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Patent number: 5262265Abstract: A resin composition for toners with excellent characteristics is provided. The composition comprises, as principal components, a resin (A) containing carboxyl groups and a resin (B) containing glycidyl or .beta.-methylglycidyl groups, wherein the resin (A) is obtained by a reaction between a multivalent metal compound (m) and copolymer .alpha., said copolymer .alpha. being obtained from a styrene type monomer (a), a (meth)acrylic ester monomer (b), and a vinyl type monomer (c) containing carboxyl groups, and the resin (B) is copolymer .beta. obtained from a vinyl type monomer (d) containing glycidyl or .beta.-methylglycidyl groups and another vinyl type monomer (e).Type: GrantFiled: January 8, 1993Date of Patent: November 16, 1993Assignee: Sekisui Kagaku Kogyo Kabushiki KaishaInventors: Takayoshi Matsunaga, Susumu Tanaka, Yoshiyuki Kosaka, Tatsuo Suzuki, Masazumi Okudo
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Patent number: 5128515Abstract: A heating apparatus comprising a refractory block in which coil heater is embedded, an inner metal cover located outside the refractory block, a water cooling pipe located outside the inner cover, an outer metal cover located outside the water cooling pipe, a terminal electrically connected to end of the coil heater and passed through the inner and outer covers, and a power supply electrically connected to the terminals to supply current to the coil heaters. Each of the terminals is fixed to the outer cover by insulating members but left free from the inner cover.Type: GrantFiled: April 30, 1991Date of Patent: July 7, 1992Assignee: Tokyo Electron Sagami LimitedInventor: Susumu Tanaka
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Patent number: 5015330Abstract: A film forming method comprises the steps of placing a plurality of objects to be processed and supplying an etching gas in a reaction container, removing a natural oxidization originated film on an object to be processed placed in the reaction container under a heating condition by plasma etching, exhausting the etching gas after stopping supply of the etching gas so as to stop making of the plasma, and supplying a film forming gas in the reaction container without rendering the reaction container open to air so as to form a film on the objects.Type: GrantFiled: February 28, 1990Date of Patent: May 14, 1991Assignees: Kabushiki Kaisha Toshiba, Tokyo Electron Limited, Tokyo Electron Sagami LimitedInventors: Katsuya Okumura, Takahiko Moriya, Shinji Miyazaki, Yoshio Kumagai, Susumu Tanaka
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Patent number: 5011705Abstract: The method of the present invention for forming a high-quality thin film on a substrate comprises a step of introducing a cleaning gas into a treatment container, and a step of bringing the cleaning gas into a plasma state in an electric field and a magnetic field in the treatment container, thus cleaning the inside of the treatment container by the plasma. According to this method, impurities, which prevent a high-quality thin film from being formed on the surface of the substrate, can be completely eliminated in a short time period, thus allowing the formation of a high-quality thin film.Type: GrantFiled: April 25, 1989Date of Patent: April 30, 1991Assignee: Tel Sagami LimitedInventor: Susumu Tanaka