Patents by Inventor Shigeru Kojima
Shigeru Kojima 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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Publication number: 20020163005Abstract: There is provided a light emitting device and a process for producing the same in that the light emission efficiency is high, the range of selection of the material is broad, and a device array of a large area can be formed. On a substrate 11 comprising quartz glass, an n-type clad layer 12 comprising a non-single crystal body of n-type AlGaN, a light emitting layer 13 containing plural microcrystals 13a comprising ZnO, and a p-type clad layer 14 comprising a non-single crystal body of p-type BN are laminated in this order. Between the n-type clad layer 12 and the p-type clad layer 14, an insulating layer 15 is formed to fill the gap among the microcrystals 13a to prevent a leaking electric current. The insulating layer 15 is formed by oxidizing the surface of the n-type clad layer 12.Type: ApplicationFiled: June 26, 2002Publication date: November 7, 2002Inventors: Shigeru Kojima, Katsuya Shirai, Yoshifumi Mori, Atsushi Toda
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Publication number: 20020160544Abstract: There is provided a light emitting device and a process for producing the same in that the light emission efficiency is high, the range of selection of the material is broad, and a device array of a large area can be formed. On a substrate 11 comprising quartz glass, an n-type clad layer 12 comprising a non-single crystal body of n-type AlGaN, a light emitting layer 13 containing plural microcrystals 13a comprising ZnO, and a p-type clad layer 14 comprising a non-single crystal body of p-type BN are laminated in this order. Between the n-type clad layer 12 and the p-type clad layer 14, an insulating layer 15 is formed to fill the gap among the microcrystals 13a to prevent a leaking electric current. The insulating layer 15 is formed by oxidizing the surface of the n-type clad layer 12.Type: ApplicationFiled: June 26, 2002Publication date: October 31, 2002Inventors: Shigeru Kojima, Katsuya Shirai, Yoshifumi Mori, Atsushi Toda
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Patent number: 6211232Abstract: A process for producing benzamidoximes represented by general formula (II), which are useful as intermediates of pesticides and drugs, at a stable and high yield by reacting benzonitriles represented by general formula (I) with hydroxylamine in the presence of a chelating agent wherein X represents halogeno, C1-5alkyl, C1-3 alkoxy, C1-3 alkylthio, hydroxy, mercapto, amino, nitro or C1-5haloalkyl; and n is 0 or an integer of from 1 to 5.Type: GrantFiled: June 29, 2000Date of Patent: April 3, 2001Assignee: Nippon Soda Co., Ltd.Inventors: Hiroyuki Yamanaka, Shigeru Kojima, Isamu Kasahara
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Patent number: 6166512Abstract: In controller for diesel electric locomotive, after output from an alternating current generator driven by a diesel engine is rectified into direct current power, the direct current power is inverted into alternating current power by an inverter to thereby carry out a power run control of an induction motor, and energy generated by the induction motor is consumed at a brake resistor by moving a brake chopper when the brake is applied. When a revolving speed of said induction motor exceeds a predetermined value at the time of power run, an slip control unit detects slip of wheels and outputs an output reduction signal for the induction motor in correspondence to a level of slip. An output torque of the induction motor is reduced with the output reduction signal. Further, a reduced amount of the output torque of the induction motor is consumed at a brake resistor through a conduction ratio control of the brake chopper.Type: GrantFiled: June 4, 1999Date of Patent: December 26, 2000Assignee: Mitsubishi Denki Kabushiki KaishaInventor: Shigeru Kojima
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Patent number: 5777977Abstract: A recording and reproducing apparatus has a recording and/or reading head having a tip for recording and/or reproducing information on and/or from a recording medium. Information is recorded and/or erased by way of a polarization reversal or transport of electric charges in a predetermined area of the recording medium in response to application of a pulse voltage from the head. The information recorded in the predetermined area is detected as a change in the electric charges or an electrostatic capacitance or a surface potential or their differential in the predetermined area for reproducing the information.Type: GrantFiled: August 22, 1996Date of Patent: July 7, 1998Assignee: Sony CorporationInventors: Ichiro Fujiwara, Akio Machida, Shigeru Kojima
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Patent number: 5453529Abstract: Nitroinimo compound as intermediate for insecticides and pharmaceauticals of the formula I ##STR1## wherein R.sup.1 and R.sup.2 are the same or different from each other and denote lower alkyl of 1 to 4 carbon atoms.Type: GrantFiled: November 23, 1993Date of Patent: September 26, 1995Assignee: Nippon Soda Co., Ltd.Inventors: Shigeru Kojima, Makoto Funabora, Noriaki Kawahara, Yoshiyuki Iiyoshi
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Patent number: 5361217Abstract: A position measuring/plotting apparatus and a position indicator are used in plotting a plan view representing a situation, for example, the site of a traffic accident. The position measuring/plotting apparatus generally includes a position detector to detect spatial coordinates of targets, a processor to detect plane coordinates of the targets based on the spatial coordinates, and a plan view plotter to plot a plan view based on the data regarding those plane coordinates. The position indicator comprises a plurality of targets fixedly mounted on a supporting rod having an end serving to indicate a position of a scene component. Each target includes a reflector adapted to reflect a light beam projected thereon and light emitters used to project light beams by which the target is detected by the position detector.Type: GrantFiled: May 5, 1993Date of Patent: November 1, 1994Assignee: Fuji Photo Optical Co., Ltd.Inventors: Kazuo Makimura, Shigeru Kojima, Haruo Kakizawa
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Patent number: 5141195Abstract: A counterweight handling device for construction equipment such as cranes in which a counterweight can be elevated to a predetermined height by using particulate hydraulic components then supported on a mounting frame. The counterweight may be supported by a pair of rectangular rotating blocks mounted on the counterweight mounting frame and which slide through a pair of vertical grooves in vertical position into supporting hollows in the counterweight bottom and turn through 90.degree. so as to support the counterweight by blocking the vertical grooves. Alternatively a pair of sliding pins mounted on the counterweight mounting frame may be extended into inverted V shaped notches on the counterweight bottom so as to support the counter weight. The counterweight can then be fastened on the counterweight mounting frame. Later the counterweight can be removed.Type: GrantFiled: June 11, 1990Date of Patent: August 25, 1992Assignee: Shin Caterpillar Mitsubishi Ltd.Inventors: Tadashi Toda, Jun-ichi Shimizu, Kobayashi Nobuyuki, Hideyuki Izumi, Tsuruo Hamamoto, Norio Nakajima, Shigeru Kojima
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Patent number: 4810087Abstract: A microfilm reader which has an optical system for magnifying and projecting an image recorded on a film contained a cassette onto a viewing screen mounted on a pivot shaft of a casing having a generally rectangular flattened box-like configuration of the microfilm reader for folding and unfolding movement comprises a cassette holder, a microfilm driving device for transporting the microfilm so as to place a frame of the microfilm of which an image is to be projected, a reflection mirror supported by the casing for sliding movement so as to be foldable in order to turn the projected image toward the viewing screen, a top cover mounted on and supported by the casing for folding and unfolding movement which is slidably engaged with a top end of the viewing screen so as to define a dark space behind the viewing screen in cooperation therewith when the viewing screen is unfolded and to cover and protect the viewing screen when the viewing screen is folded, and linking device interconnecting the viewing screen andType: GrantFiled: February 25, 1988Date of Patent: March 7, 1989Assignee: Fuji Photo Film Co., Ltd.Inventors: Hajime Tachibana, Eichi Saito, Hiroshi Fukuda, Tetsuo Udagawa, Koji Ohgaki, Shigeru Kojima
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Patent number: 4810086Abstract: A microfilm reader which has an optical system for magnifying and projecting an image recorded on a film contained a cassette onto a viewing screen mounted on a pivot shaft of a casing having a generally rectangular flattened box-like configuration of the microfilm reader for folding and unfolding movement comprises a cassette holder, a microfilm driving device for transporting the microfilm so as to place a frame of the microfilm of which an image is to be projected, a reflection mirror supported by the casing for sliding movement so as to be foldable in order to turn the projected image toward the viewing screen, a top cover mounted on and supported by the casing for folding and unfolding movement which is slidably engaged with a top end of the viewing screen so as to define a dark space behind the viewing screen in cooperation therewith when the viewing screen is unfolded and to cover and protect the viewing screen when the viewing screen is folded, and linking device interconnecting the viewing screen andType: GrantFiled: May 11, 1987Date of Patent: March 7, 1989Assignee: Fuji Photo Film Co., Ltd.Inventors: Hajime Tachibana, Eichi Saito, Hiroshi Fukuda, Tetsuo Udagawa, Koji Ohgaki, Shigeru Kojima
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Patent number: 4686434Abstract: An electric vehicle monitoring system in which one induction motor has a rotational speed detector but another motor does not have such a detector. Separate current detectors monitor the current delivered to each of the motors. A calculations circuit uses the rotation of the one motor and a comparison of the two currents to monitor the performance of both motors.Type: GrantFiled: March 7, 1986Date of Patent: August 11, 1987Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Shigeru Kojima, Hideo Obi
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Patent number: 4639722Abstract: This invention relates to a liquid crystal display apparatus and particularly to a liquid crystal display apparatus based on a liquid crystal light emitter actuated by the heat from a laser beam.A liquid crystal display apparatus according to this invention is formed such that an energy beam is irradiated onto the arrays of smectic liquid crystal particles having polarities equivalent in energy directions and opposite to each other in dipole moments of the particles and applied with a voltage, which is too low to switch the arrays to each other to provide the display.Consequently, according to the liquid crystal display apparatus of this invention, the writing speed of the display can be improved significantly and a high contrast of the display can be presented.Type: GrantFiled: July 18, 1983Date of Patent: January 27, 1987Assignee: Sony CorporationInventors: Tetsuo Urabe, Shigeru Kojima
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Patent number: 4594429Abstract: The present invention relates to a novel process for producing 3-chloro-1-formyl-4-phenylpyrroles having the general formula [I] as a useful fungicidal agent in agriculture and horticulture which is manufactured from the starting material of 3-phenyl-2,2,4-trichlorobutanal having the general formula [IV] as set forth in the following reaction formulae:By means of obtaining a pyrroline derivative having the general formula [III] as the intermediate compound, its production operation is greatly simplified and its yield rate is raised in comparison with the conventional processes. ##STR1## where X denotes the same or different kinds of substituent(s) being chosen from the group consisting of halo, nitro, and trifluoromethyl and n denotes zero or an integer of 1 or 2.Type: GrantFiled: June 4, 1984Date of Patent: June 10, 1986Assignee: Nippon Soda Co. Ltd.Inventors: Akiyoshi Ueda, Fumihiko Nagasaki, Yutaka Takakura, Shigeru Kojima
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Patent number: 4532363Abstract: There is a method for the production of 3-phenylpyrrole derivatives having the general formula ##STR1## wherein X is halogen, nitro or haloalkyl having 1 to 3 carbon atoms;n is 0, 1 or 2; andZ is hydrogen or halogen;which comprises reacting a compound having the general formula ##STR2## wherein X and n are as previously defined; andY is hydrogen or halogen;with ammonia or aqueous ammonia in an organic solvent.A compound having the general formula [I] is useful as fungicide or intermediate thereof.Type: GrantFiled: May 30, 1984Date of Patent: July 30, 1985Assignee: Nippon Soda Company LimitedInventors: Akiyoshi Ueda, Humiko Nagasaki, Yutaka Takakura, Shigeru Kojima
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Patent number: 4471126Abstract: There is a method for the production of 3-phenylpyrrole derivatives having the general formula ##STR1## wherein X is halogen, nitro or haloalkyl having 1 to 3 carbon atoms;n is 0, 1 or 2; andZ is hydrogen or halogen;which comprises reacting a compound having the general formula ##STR2## wherein X and n are as previously defined; andY is hydrogen or halogen;with ammonia or aqueous ammonia in an organic solvent.A compound having the general formula [I] is useful as fungicide or intermediate thereof.Type: GrantFiled: April 18, 1983Date of Patent: September 11, 1984Assignee: Nippon Soda Company LimitedInventors: Akiyoshi Ueda, Humihiko Nagasaki, Yutaka Takakura, Shigeru Kojima
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Patent number: 4404046Abstract: There is provided a method of producing a manganese-aluminum-carbon alloy magnet, including the steps of preparing a polycrystalline Mn-Al-C alloy magnet having a specified direction of easy magnetization and subjecting the magnet to compressive working in that direction at a temperature of 550.degree. to 780.degree. C., the degree of said compressive working being equivalent to a logarithmic strain of .ltoreq.-0.1 and working in said step at least up to a logarithmic strain of -0.1 being free compression.Type: GrantFiled: February 5, 1981Date of Patent: September 13, 1983Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Yoichi Sakamoto, Akihiko Ibata, Shigeru Kojima, Tadao Ohtani
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Patent number: 4303667Abstract: Compounds of the general formula ##STR1## wherein R.sub.1 is hydrogen or chlorine, R.sub.2 is hydrogen, chlorine or nitro, andR.sub.3 is hydrogen or methoxymethyl, with the proviso that R.sub.1 and R.sub.2 do not represent hydrogen simultaneously,are outstanding effective fungicides.Type: GrantFiled: April 9, 1980Date of Patent: December 1, 1981Assignee: Nippon Soda Company LimitedInventors: Akiyoshi Ueda, Shigeru Kojima, Yasushi Yasuda, Hiroaki Nishikawa, Akira Nakada
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Patent number: 4285385Abstract: A method of producing a heat exchanger in which a fin block of porous metal and fin plates connected to the fin block are unitarily secured to a serpentine heat-transmitting pipe. A plurality of fin molds produced with the use of plastic patterns formed therein with continuous, three-dimensional cavities are assembled with the heat-transmitting pipe shaped beforehand into a serpentine form in such a manner that the fin molds enclose the heat-transmitting pipe with suitable spacing intervals defined between the fin molds themselves and between the fin molds and the heat-transmitting pipe. Molten metal of high thermal conductivity is cast into continuous cavities in the fin molds and into the spacing intervals, and the material of the fin molds is removed after the molten metal has solidified.Type: GrantFiled: June 22, 1979Date of Patent: August 25, 1981Assignee: Hitachi, Ltd.Inventors: Masakatsu Hayashi, Takeo Tanaka, Tatsuo Natori, Tatsushi Aizawa, Shigeru Kojima, Takao Senshu
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Patent number: 4133703Abstract: A permanent magnetic alloy which is obtained by adding copper in amount of 0.5 to 6.2 wt% to the conventional Mn-Al-C alloy comprising 68.0 to 73.0 wt% of manganese, (1/10 Mn -- 6.6) to (1/3 Mn -- 22.2) wt% of carbon and the remainder aluminum and subjecting thus prepared alloy to warm plastic deformation in order to improve plasticity of the alloy.Type: GrantFiled: August 17, 1977Date of Patent: January 9, 1979Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Shigeru Kojima, Kiyoshi Kojima, Satoru Mitani
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Patent number: 4042429Abstract: Magnetic alloys consisting of 68.0.about.73.0 weight % manganese, (1/10 Mn - 6.6).about.(1/3 Mn - 22.2) weight % carbon, the balance aluminum, which show wasp-waisted magnetic hysteresis loops with the ratio of the residual magnetization 4.pi.I.sub.r to the intensity of magnetization 4.pi.I.sub.10000 in a magnetic field of 10000 Oe, I.sub.r /I.sub.10000, falling 0.0.about.0.2.Type: GrantFiled: October 1, 1974Date of Patent: August 16, 1977Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Shigeru Kojima, Kiyoshi Kojima, Tadao Ohtani, Nobuyuki Kato, Yoichi Sakamoto, Isago Konno, Masaharu Tsukahara, Takao Kubo