Patents by Inventor Masami Kawasaki
Masami Kawasaki 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: 7797829Abstract: A method of manufacturing an oil ring is disclosed. The oil ring includes an annular oil ring body having a pair of rail portions at its axially upper and lower portions and butt ends, and a coil expander assembled in the inner periphery of the oil ring body. A number of oil ring bodies and annular spacers having a smaller diameter than the oil ring bodies are stacked, and then aligned and retained using a jig such that an outer periphery of the oil ring bodies becomes a circle. The aligned oil ring bodies are rotated and a flat region that is substantially level with respect to the outer peripheral sliding surface of the plurality of oil ring bodies is formed. Curved regions extending on both sides of that flat region are formed using a buff or an elastic grindstone.Type: GrantFiled: October 24, 2005Date of Patent: September 21, 2010Assignee: Kabushiki Kaisha RikenInventors: Masaki Yamada, Kuniyasu Ito, Masami Kawasaki, Tomoaki Abe, Shigenobu Uchiyama
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Patent number: 7077402Abstract: A combined oil ring 4 is comprised of an oil ring 5 having upper and lower rails 7 and 8, and an expander 6 for applying contact pressure radially outwards on the oil ring 5. The outer circumferential surface 11 of the upper rail 7 of the oil ring 5 is comprised of a flat surface 11a with an axial width of 0.05 to 0.3 millimeters, a curved surface 11b joining to the upper end of the flat surface 11a and to the upper surface 12 of the upper rail 7, and a curved surface 11c joining to the lower end of the flat surface 11a and to the lower surface 13 of the upper rail 7. The lower rail 8 is formed in the same way.Type: GrantFiled: December 5, 2003Date of Patent: July 18, 2006Assignee: Teikoku Piston Ring Co., Ltd.Inventors: Masakazu Katumaru, Seiji Tamaki, Masami Kawasaki
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Publication number: 20060081126Abstract: An oil ring 1 comprises an annular oil ring body 10 having a pair of rail portions 12 at its axially upper and lower portions and butt ends, and a coil expander 20 assembled in the inner periphery of the oil ring body 10. The cross-sectional profile taken in the radial direction of the outer peripheral sliding surface (f) of the pair of rail portions 12 has a nearly straight region (f1) with a length of equal to or more than 0.05 mm in the center and curved regions (f2) formed on both sides of the straight region (f1).Type: ApplicationFiled: October 24, 2005Publication date: April 20, 2006Inventors: Masaki Yamada, Kuniyasu Ito, Masami Kawasaki, Tomoaki Abe, Shigenobu Uchiyama
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Publication number: 20040119242Abstract: A combined oil ring 4 is comprised of an oil ring 5 having upper and lower rails 7 and 8, and an expander 6 for applying contact pressure radially outwards on the oil ring 5. The outer circumferential surface 11 of the upper rail 7 of the oil ring 5 is comprised of a flat surface 11a with an axial width of 0.05 to 0.3 millimeters, a curved surface 11b joining to the upper end of the flat surface 11a and to the upper surface 12 of the upper rail 7, and a curved surface 11c joining to the lower end of the flat surface 11a and to the lower surface 13 of the upper rail 7. The lower rail 8 is formed in the same way.Type: ApplicationFiled: December 5, 2003Publication date: June 24, 2004Applicant: TEIKOKU PISTON RING CO., LTD.Inventors: Masakazu Katumaru, Seiji Tamaki, Masami Kawasaki
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Publication number: 20010002247Abstract: After hydrogenation and desulfurization treatment of raw fuel in the desulfurization unit 1, the product is separated in the acidic gas separator 2 into fuel and a hydrogen sulfide-containing gas, and the hydrogen sulfide-containing gas is subjected to combustion together with air in the catalyst converter 3 thereby converting the hydrogen sulfide completely into sulfur dioxide to give a sulfur dioxide-containing gas, and this sulfur dioxide-containing gas is reacted with limestone powder and air in water in the oxidation and neutralization reactor 4, and the resulting slurry is dehydrated in the gypsum slurry solid/liquid separator 5 and then dried in the gypsum heater 6.Type: ApplicationFiled: August 21, 1998Publication date: May 31, 2001Applicant: Taiichiro SudaInventors: TAIICHIRO SUDA, NAGATOSHI FUJII, MASAMI KAWASAKI, YOSHIKO MORIGUCHI, MASAKI IIJIMA, TOSHIKUNI SERA
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Patent number: 6179040Abstract: A shift fork used in a transmission which engages with an engaging groove of a coupling sleeve of the transmission, comprises a fork main body and an engaging part integrally molded therewith. The engaging part has an engaging surface which comes in contact with a coupling sleeve, and the engaging surface is formed in a bulging shape by high precision aluminum diecasting.Type: GrantFiled: November 24, 1998Date of Patent: January 30, 2001Assignees: Nissan Motor Co., Ltd., Fuji Univance CorporationInventors: Tomohiro Aoki, Masami Kawasaki, Kenichi Tsuchiya
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Patent number: 5798087Abstract: After hydrogenation and desulfurization treatment of raw fuel in the desulfurization unit 1, the product is separated in the acidic gas separator 2 into fuel and a hydrogen sulfide-containing gas, and the hydrogen sulfide-containing gas is subjected to combustion together with air in the catalyst converter 3 thereby converting the hydrogen sulfide completely into sulfur dioxide to give a sulfur dioxide-containing gas, and this sulfur dioxide-containing gas is reacted with limestone powder and air in water in the oxidation and neutralization reactor 4, and the resulting slurry is dehydrated in the gypsum slurry solid/liquid separator 5 and then dried in the gypsum heater 6.Type: GrantFiled: December 10, 1996Date of Patent: August 25, 1998Assignees: Kansai Electric Power Co., Inc., Mitsubishi Jukogyo Kabushiki KaishaInventors: Taiichiro Suda, Nagatoshi Fujii, Masami Kawasaki, Yoshiko Moriguchi, Masaki Iijima, Toshikuni Sera
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Patent number: 5536454Abstract: An apparatus for gas-liquid contact in which tubular structure fillers having a cross section of any of various shapes and having straight tubular portions are arranged in a substantially vertical direction in the form of plural steps so that the gas-liquid contact surfaces of the fillers may be parallel with the flow of the gas,the apparatus for gas-liquid contact being characterized in that the gas-liquid contact surfaces comprise rough surface portions, porous surface portions, meshes or plates to which meshes adhere, or there is interposed, between the plural steps of the fillers, a dispersing plate for receiving the liquid downward coming from the site above the fillers, dispersing the liquid, and allowing the liquid to downward flow.Type: GrantFiled: June 5, 1995Date of Patent: July 16, 1996Assignees: Mitsubishi Jukogyo Kabushiki Kaisha, Kansai Electric Power Co., Inc.Inventors: Masumi Fujii, Yoshitsugu Hotta, Taiichiro Suda, Kouichi Kitamura, Yukihiro Jinno, Tomio Mimura, Shigeru Shimojo, Masami Kawasaki, Kunihiko Yoshida, Mutsunori Karasaki, Masaki Iijima, Shigeaki Mitsuoka
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Patent number: 5378442Abstract: A method for recovering carbon dioxide by absorbing carbon dioxide present in a combustion exhaust gas using an aqueous alkanolamine solution, comprising the step of bringing a combustion exhaust gas from which carbon dioxide has been absorbed and removed into contact with water containing carbon dioxide. A method for treating a combustion exhaust gas for denitration using ammonia as a reducing agent and for removal of carbon dioxide by absorption with an aqueous alkanolamine solution, which method comprising the steps of recovering ammonia present in the combustion exhaust gas after the carbon dioxide removal, and using the recovered ammonia as a reducing agent for the denitration. A method for removing CO.sub.2 from a combustion exhaust gas comprising the step of bringing the combustion exhaust gas into contact under atmospheric pressure with an aqueous monoethanolamine solution having a concentration of 35% by weight or more.Type: GrantFiled: January 13, 1993Date of Patent: January 3, 1995Assignees: The Kansai Electric Power Co., Inc., Mitsubishi Jukogyo Kabushiki KaishaInventors: Masumi Fujii, Taiichiro Suda, Yoshitsugu Hotta, Kenji Kobayashi, Kunihiko Yoshida, Shigeru Shimojo, Koichi Kitamura, Masami Kawasaki, Mutsunori Karasaki, Masaki Iijima, Touru Seto, Shigeaki Mitsuoka
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Patent number: 5098269Abstract: A center mechanism for a tire mold comprising a mushroom-shaped bladder, a clamp ring for clamping a lower opening edge of the bladder, a post cylinder for extending and contracting a height of the bladder, a movable stopper for receiving a depressing force against the clamp ring which is generated by heating medium introduced into the bladder upon vulcanizing a tire, and a bladder elevator cylinder for elevating and lowering the clamp ring upon loading and unloading a tire.Type: GrantFiled: April 30, 1991Date of Patent: March 24, 1992Assignee: Mitsubishi Jukogyo Kabushiki KaishaInventors: Nobuhiko Irie, Hideaki Katayama, Masami Kawasaki
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Patent number: 4984419Abstract: There is disclosed an apparatus for mounting a grass box of a mower having a machine body, a covered grass box, a mowing unit and a duct through which the grasses mowed by the mowing unit are inputted into the grass box. The apparatus includes a pair of guide rails, laid under the cover, into which the grass box is removably inserted from the rear side. In the mower having the covered grass box disposed below a handle rod, the apparatus further includes stoppers through which the grass box is rotatably removably engaged with the cover and a fixing member for fixing the grass box to the cover in a closed state.Type: GrantFiled: July 27, 1989Date of Patent: January 15, 1991Assignee: Kubota, Ltd.Inventors: Keiichi Sampei, Masami Kawasaki
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Patent number: 4941863Abstract: A stepless speed change mechanism in a belt transmission device comprising a first belt passed through a groove in a drive pulley and a first groove in an intermediate pulley, and a second belt passed through a second groove in the intermediate pulley and a groove in a driven pulley for transmitting rotation from the drive pulley to the driven pulley via the intermediate pulley. The first groove and the second groove of the intermediate pulley have an axial width gradually decreasing radially inwardly of the pulley. A partition provided between and defining the first and second grooves of the intermediate pulley is movable axially of the pulley to thereby vary the pitch diameter of each of the first and second grooves and steplessly change the speed of rotation to be transmitted from the drive pulley to the driven pulley.Type: GrantFiled: March 28, 1989Date of Patent: July 17, 1990Assignee: Kubota Ltd.Inventors: Keiichi Sampei, Masami Kawasaki, Yosihito Dei, Katsumi Fukumoto, Kazuo Furukawa
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Patent number: 4939892Abstract: There is disclosed a gait type mower constructed such that a mowing unit is mounted on a front part of a vehicle, driving wheels are provided at a rear part thereof, and handles are installed backwards. An engine and a variable speed gear interlocking therewith are loaded on the vehicle. The power is imparted from output shafts of the gear via belt transmission mechanisms to the driving wheels. An improved mower is arranged such that: the engine is placed in front of the axle, while the variable speed gear is placed behind the axle; the output shafts are positioned substantially upwardly of the axle in front of the gear; and the belt transmission mechanisms are disposed in the up-and-down directions.Type: GrantFiled: August 4, 1989Date of Patent: July 10, 1990Assignee: Kubota Ltd.Inventor: Masami Kawasaki
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Patent number: 4845929Abstract: A cutter-trimmer comprising a drivingly rotatable cutter disposed at the front end of the body thereof, a guide handle disposed at the rear end of the body, a wheel member disposed in the vicinity of the cutter and reversibly rotatable about a horizontal axis for supporting the body thereon, and a cutter driving engine and a wheel member driving electric motor provided at a longitudinally intermediate portion of the body toward its front end. The device is adapted to perform a cutting operation while traveling forward, rearward or sideways by shifting the wheel member to a forward position or to a lateral position about a vertical axis and holding the wheel member in the shifted position.Type: GrantFiled: December 29, 1987Date of Patent: July 11, 1989Assignee: Kubota Ltd.Inventors: Masami Kawasaki, Keiichi Sanpei, Tetsuya Nishida
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Patent number: 4832474Abstract: In order to substantially reduce the time required for examination and to enable the structure of the microscope apparatus for examining a wafer to be made in a compact size, the apparatus comprises a wafer examination unit provided midway on the transportation course of the wafer transporting means for being able to move the wafer under examination independently of the direction of its transporation, and an objective disposed above the wafer examination unit for being able to move along the upper face of the wafer which is held at the position of examination and in a direction different from the direction of the transportation.Type: GrantFiled: May 26, 1988Date of Patent: May 23, 1989Assignee: Olympus Optical Co., Ltd.Inventors: Makoto Yoshinaga, Yoichi Iba, Noriyuki Miyahara, Masami Kawasaki, Terumasa Morita, Takashi Nagano
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Patent number: 4744642Abstract: A microscope wherein, in order that the observing position may be variable over a wide range of a sample to be observed without requiring a large objective, the objective optical system is so formed as to be movable in parallel with the sample surface and the light path length between the objective optical system and eyepiece optical system is made variable by moving the objective optical system.Type: GrantFiled: November 7, 1986Date of Patent: May 17, 1988Assignee: Olympus Optical Co., Ltd.Inventors: Makoto Yoshinaga, Yoichi Iba, Noriyuki Miyahara, Masami Kawasaki, Terumasa Morita, Takashi Nagano
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Patent number: 4661692Abstract: A microscope provided with a photographing device which has a structure for always projecting an optimum image onto an image pickup device, a structure for correcting image data obtained from the image pickup device to eliminate the influences of the unevenness of the brightness distribution of the projected image and the unevenness of the characteristics of each picture element forming the image pickup device, a structure for bringing a focusing stage to an in-focus position adapted to an objective selected to be used on the basis of the corrected image data and a structure for making an out-focus indication when the focusing stage is brought to a predetermined upper limit position or lower limit position, to make high precision, quick automatic focusing possible.Type: GrantFiled: March 26, 1984Date of Patent: April 28, 1987Assignee: Olympus Optical Co., Ltd.Inventor: Masami Kawasaki
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Patent number: 4653878Abstract: A microscope equipped with an electric device for driving a revolver and a stage, having a means capable of rotating the revolver to interchange an objective only when a stage is lowered by a constant amount, a means capable of changing the movement speed of the stage for focusing in accordance with the magnification of the objective brought into a light path, and a means capable of restoring to an original position after the stage is once lowered to a lower limit position in order to be able to focus simply and rapidly and perform securely the interchange of the objective and the like. The electric device involves a step motor and, except when the stage is being driven, the connection between the motor and the stage is released so that the stage may be easily controlled by a manual operation.Type: GrantFiled: February 13, 1986Date of Patent: March 31, 1987Assignee: Olympus Optical Co., Ltd.Inventors: Kanae Nakasato, Masayuki Naito, Masami Kawasaki
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Patent number: 4643540Abstract: A microscope comprising a data input means capable of putting in data on the magnifications and kinds of objectives, a detecting means for recognizing an objective inserted in a light path, a memory means capable of memorizing respective data relating to a plurality of objectives, electric driving controlling means capable of adjusting the brightness of illuminating light brightness, field stop, aperture stop and condenser lens and a central processing unit capable of reading out of the memory means the data optimum to the objective recognized by the detecting means and adjusting the brightness of illuminating light, field stop, aperture stop and condenser lens through the respective driving controlling means so as to be optimum to the objective inserted in the light path, to make it possible to automatically and positively adjust the brightness of illuminating light, field stop, aperture stop and condenser lens so as to be optimum for the objective inserted in the light path.Type: GrantFiled: March 20, 1984Date of Patent: February 17, 1987Assignee: Olympus Optical Co., Ltd.Inventors: Masami Kawasaki, Masayuki Naito
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Patent number: 4321783Abstract: A mid-mounted mower disposed below the body of a tractor is suspended from the tractor body upwardly or downwardly movably by a pair of opposed flexible link assemblies each flexible about an axis extending longitudinally of the tractor body. During mowing the mower is movable up and down following rises and falls of the ground, while when running on a road or the like, the mower is lifted in a substantially horizontal position by a hydraulic cylinder connected between the pair of link assemblies, or by a hydraulic unit in a rear portion of the tractor body through wires.Type: GrantFiled: March 27, 1980Date of Patent: March 30, 1982Assignee: Kubota, Ltd.Inventors: Masami Kawasaki, Hirofumi Sadakane