Patents by Inventor Tetsuo Nakajima
Tetsuo Nakajima 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: 4968805Abstract: Disclosed herein are pyrazole derivatives which are represented by the following formula (I): ##STR1## wherein R.sup.1 represents a C.sub.1 -C.sub.4 alkyl group or a benzyl group; R.sup.2 represents a hydrogen atom or a C.sub.1 -C.sub.4 alkyl group; X represents a hydrogen atom, a halogen atom or a C.sub.1 -C.sub.4 alkyl group; R.sup.2 may combine with X to form ##STR2## wherein R.sup.5 represents a hydrogen atom or a C.sub.1 -C.sub.3 alkyl group; R.sup.3 represents a hydrogen atom or a C.sub.1 -C.sub.4 alkyl group; R.sup.4 s independently represent a hydrogen atom, a halogen atom, a C.sub.1 -C.sub.5 alkyl group, a C.sub.1 -C.sub.4 alkoxy group, a C.sub.1 -C.sub.4 alkylthio group, a trifluoromethyl group, a C.sub.1 -C.sub.4 haloalkoxy group, a phenyl group, an alkyl-substituted phenyl group or ##STR3## wherein Y represents an oxygen atom or a sulfur atom, R.sup.6 s independently represent a hydrogen atom, a C.sub.1 -C.sub.4 alkyl group, a C.sub.1 -C.sub.Type: GrantFiled: February 15, 1989Date of Patent: November 6, 1990Assignee: Mitsubishi Kasei CorporationInventors: Itaru Okada, Shigeru Suzuki, Shuko Okui, Yoji Takahashi, Toshiki Fukuchi, Tetsuo Nakajima
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Patent number: 4617899Abstract: A fuel injection control device for an internal combustion engine, which enables injection of fuel into separate cylinders to be controlled by only one timer counter, without reference to the number of cylinders, thereby simplifies the configuration of an electronic circuit for the control of the internal combustion engine, and promotes reduction of cost and improvement of reliability.Type: GrantFiled: April 30, 1985Date of Patent: October 21, 1986Assignee: Honda Giken Kogyo Kabushiki KaishaInventor: Tetsuo Nakajima
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Patent number: 4598370Abstract: This invention provides an apparatus for the control of acceleration and deceleration of an automobile, which enlarges the ratio of increase in the real speed of the automobile while the automobile is accelerated from its auto-cruise condition and precludes overshoot and hunting of the real speed of the automobile after the acceleration or deceleration is completed and the resumption of constant-speed travel is started. In the course of acceleration, the throttle opening angle is first increased abruptly by a predetermined amount and then increased as the function of time and, upon disappearance of an acceleration signal, the throttle opening angle is decreased by an amount based on the real speed of the automobile as it exists at that moment.Type: GrantFiled: January 18, 1984Date of Patent: July 1, 1986Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Tetsuo Nakajima, Tomio Aoi
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Patent number: 4591986Abstract: This invention provides an apparatus for the control of the transition to auto-cruise, which is capable of precluding detrimental phenomena such as dipping and hunting of the automobile speed while the control of the automobile speed is in transition from the manual status to the automatic status. In accordance to this invention, when the auto-cruise status is set, the apparatus unconditionally effects an initial setting of the throttle position to a provisional target throttle position which is dependent on the automobile speed as it exists at that moment, namely the target speed of the automobile, and thereafter the apparatus detects the deviation of the real speed of the automobile from the target automobile speed and, based on this deviation, effects feedback control of the throttle position.Type: GrantFiled: January 18, 1984Date of Patent: May 27, 1986Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Tetsuo Nakajima, Tomio Aoi
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Patent number: 4498440Abstract: A mixture control apparatus for a carburetor which precludes otherwise possible occurrence of fluctuation in the opening angle of the throttle valve even when the engine operation happens to fall near the boundary between the cold state and the hot state. The electric motor for driving the throttle valve is prevented from moving to the side of reverse rotation thereof from the side of normal rotation thereof past a home position after said engine has been changed to its hot state and unless a stop of said engine is detected.Type: GrantFiled: April 2, 1984Date of Patent: February 12, 1985Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Toshio Nomura, Yasuhiro Imai, Tomio Aoi, Tetsuo Nakajima, Hiroshi Irino
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Patent number: 4493304Abstract: Temperature measuring device for an internal-combustion engine comprising a main engine temperature sensor to measure the temperature of the cooling water, for example, and a secondary or auxiliary temperature sensor disposed near a heat generating element in an electronic engine control unit, as a standby for the main temperature sensor.When an output of the main temperature sensor happens to fall outside the predetermined normal range, the main temperature sensor will be immediately switched to the auxiliary temperature sensor to allow the various phases of engine control to proceed without interruption.Type: GrantFiled: December 8, 1983Date of Patent: January 15, 1985Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Tetsuo Nakajima, Hirotaka Kumata
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Patent number: 4484554Abstract: A mixture control apparatus for a carburetor which precludes otherwise possible occurrence of fluctuation in the opening angle of the throttle valve when the engine operation happens to fall near the boundary between the cold state and the hot state, a stepping motor for driving the throttle valve is prevented from hunting near the boundary between the cold state and the hot state of the engine by conferring hysterersis characteristics upon the set value for discriminating between the cold state and the hot state.Type: GrantFiled: January 18, 1984Date of Patent: November 27, 1984Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Tetsuo Nakajima, Hiroshi Irino
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Patent number: 4229433Abstract: Chemicals containing an effective amount of a polymer of a specified salt of diallylamine derivative and/or a diallyl quarternary ammonium salt exhibit a remarkable effect of preventing agricultural plants from being infected with viral diseases in plants. A method for controlling viral diseases in plants by using an effective amount of such polymer is described.Type: GrantFiled: May 17, 1979Date of Patent: October 21, 1980Assignee: Mitsubishi Chemical Industries LimitedInventors: Taichiro Shigematsu, Tetsuya Shibahara, Tetsuo Nakajima
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Patent number: 4226855Abstract: A plant viral disease preventive composition contains an alginate, as active ingredient, having properties of:(a) neutralization degree of 10 to 30%, said neutralization degree (wt %) being given from: ##EQU1## where (C.sub.5 H.sub.7 O.sub.4 COOH).sub.n is the molecular formula of the alginate, m is the number of the carboxylate groups in one molecule of the alginate, and M is an alkali metal or ammonium group; and/or(b) viscosity in a 1 wt % aqueous solution at 20.degree. C. is 2 to 10 centipoises.Type: GrantFiled: December 8, 1977Date of Patent: October 7, 1980Assignee: Mitsubishi Chemical Industries Ltd.Inventors: Taichiro Shigematsu, Tetsuya Shibahara, Hiroshi Kasugai, Tetsuo Nakajima, Shozo Motojima
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Patent number: 4166846Abstract: Chemicals containing an effective amount of homopolymers of dialkylaminoalkyl acrylate derivatives or dialkylaminoalkyl methacrylate derivatives or copolymers of such derivatives with ethylenically unsaturated monomers copolymerizable therewith. The chemicals exhibit a remarkable effect of preventing agricultural plants from being infected with plant virus diseases. A method for controlling the plant virus diseases is also described.Type: GrantFiled: July 12, 1978Date of Patent: September 4, 1979Assignee: Mitsubishi Chemical Industries, Ltd.Inventors: Taichiro Shigematsu, Hiroshi Kasugai, Tetsuya Shibahara, Tetsuo Nakajima, Toru Teraoka