Patents by Inventor Yukio Ikeda
Yukio Ikeda 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: 5614088Abstract: A cleaning water production system in which pure water from a primary pure water production system is treated in a subsystem to produce ultrapure water, which is then sent to points of use through supply pipes, the point of use being connected to the subsystem through return pipes for returning unused cleaning water to the subsystem, wherein an extra-ultrapure water production system is provided at a distal end portion of the supply pipes near the point of use for supplying extra-ultrapure water to the points of use.Type: GrantFiled: June 11, 1996Date of Patent: March 25, 1997Assignee: Ebara CorporationInventors: Hiroshi Nagai, Yukio Ikeda, Takayuki Saito
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Patent number: 5571271Abstract: This invention relates to an air bag inflation gas generator and aims to surely retain the space between an igniter and an ignition agent of a gas generating agent pack and to surely caulk an end cap. This invention has a longitudinal cylindrical member having its both ends sealed by one end plate and the other end plate and a plurality of gas outlets formed in its outer periphery, a gas generating agent pack which is accommodated in the cylindrical member, accommodates a plurality of gas generating agents in the compiled state in the axial direction of a longitudinal cylindrical pack whose both ends are sealed with one end face and the other end face and has an ignition agent disposed close to the one end face, an igniter disposed at the one end plate of the cylindrical member, and an energizing member which is disposed between the other end plate of the cylindrical member and the other end face of the gas generating agent pack and energizes the gas generating agent pack toward the igniter side.Type: GrantFiled: September 21, 1995Date of Patent: November 5, 1996Assignees: Nippon Koki Co., Ltd., Honda Giken Kogyo Kabushiki KaishaInventors: Hirokazu Kobari, Junichi Kishimoto, Takashi Minamizawa, Yukio Ikeda, Kanichi Fukuda, Haruki Abe
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Patent number: 5510317Abstract: The invention provides N-acyl-N-phenylmaleamic acid derivatives represented by the general formula I!, a method of producing the same, and a herbicide containing the same as the effective components, ##STR1## wherein X and Y each individually represent hydrogen atoms or halogen atoms, R.sup.1 represents a hydrogen atom, a halogen atom, a lower alkyl group, a lower alkenyl group, a lower alkynyl group, a lower alkoxyalkyl group or a lower alkoxycarbonylalkyl group, R.sup.2 represents a lower alkyl group, a halogenated lower alkyl group or a substituted or unsubstituted phenyl group, R.sup.3 represents a hydrogen atom or a lower alkyl group, and R.sup.4 represents a hydroxyl, a lower alkoxy group, a lower alkenyloxy group, a lower alkynyloxy group, a lower alkoxyalkoxy group, a benzyloxy group or a lower alkoxycarbonylalkoxy group. This herbicide which is very useful can be widely applied to upland, paddy field, orchard, turf, forest, non-crop land, etc., and is not harmful to crops.Type: GrantFiled: July 20, 1994Date of Patent: April 23, 1996Assignee: Central Glass Co. Ltd.Inventors: Tetsuo Takematsu, Takashi Kume, Takeo Komata, Kiyoshi Suzuki, Yukio Ikeda, Matsue Kawamura, Kaoru Mori
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Patent number: 5500559Abstract: In a semiconductor device and a method for manufacturing the same according to the present invention, for example, an insulating film is deposited on a silicon substrate, and a concave groove is formed in the insulating film in accordance with a predetermined wiring pattern. Titanium and palladium are deposited in sequence on the insulating film to form a titanium film and a palladium film, respectively. A silver film is formed on the palladium film by electroplating, and a groove-shaped silver wiring layer is formed by polishing. The resultant structure is annealed at a temperature of about 700.degree. C., and an intermetallic compound is formed by alloying the titanium film and palladium film with each other. Consequently, a burying type wiring layer whose resistance is lower than that of aluminum, is constituted by the silver wiring layer and intermetallic compound.Type: GrantFiled: May 25, 1994Date of Patent: March 19, 1996Assignees: Kabushiki Kaisha Toshiba, Ebara CorporationInventors: Masahiro Miyata, Hirokazu Ezawa, Naoaki Ogure, Manabu Tsujimura, Takeyuki Ohdaira, Hiroaki Inoue, Yukio Ikeda
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Patent number: 5481022Abstract: The invention provides N-aryloxyacyl-N-phenyltetrahydrophthalamic acid derivatives represented by the general formula [I], a method of producing the same, and a herbicide containing the same as the effective components, ##STR1## wherein X and Y each individually represent hydrogen atoms or halogen atoms, Ar represents a substituted or unsubstituted phenyl group or naphthyl group, R.sup.1 represents a hydrogen atom, a halogen atom, a lower alkyl group, a lower alkoxy group, a lower alkenyloxy group, a lower alkynyloxy group, a lower alkoxyalkoxy group or a lower alkoxycarbonylalkoxy group, R.sup.2 represents a hydrogen atom or a lower alkyl group, R.sup.3 represents a hydroxyl, a lower alkoxy group, a lower alkenyloxy group, a lower alkynyloxy group, a lower alkoxyalkoxy group, a benzyloxy group or a lower alkoxycarbonylalkoxy group, and m is an integer ranging from 0 to 5. This herbicide which is very useful can be widely applied to upland, paddy field, orchard, turf, forest, non-crop land, etc.Type: GrantFiled: July 19, 1994Date of Patent: January 2, 1996Assignee: Central Glass Company, Ltd.Inventors: Tetsuo Takematsu, Takashi Kume, Shoji Yamaoka, Takeo Komata, Kiyoshi Suzuki, Yukio Ikeda, Matsue Kawamura, Yumiko Koda, Kaoru Mori
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Patent number: 5398459Abstract: A workpiece such as a semiconductor wafer is positioned between a turntable and a top ring and polished by an abrasive cloth on the turntable while the top ring is being pressed against the turntable. The top ring has a retaining ring for preventing the workpiece from deviating from the lower surface of the top ring, and the retaining ring has an inside diameter larger than an outside diameter of the workpiece. The rotation of the turntable imparts a pressing force in a direction parallel to the upper surface of the turntable to the workpiece so that an outer periphery of the workpiece contacts an inner periphery of the retaining ring, and the rotation of the retaining ring imparts a rotational force to the workpiece so that the workpiece performs a planetary motion relative to the top ring in the retaining ring.Type: GrantFiled: November 24, 1993Date of Patent: March 21, 1995Assignees: Kabushiki Kaisha Toshiba, Ebara CorporationInventors: Katsuya Okumura, Tohru Watanabe, Riichirou Aoki, Hiroyuki Yano, Masako Kodera, Atsushi Shigeta, You Ishii, Norio Kimura, Masayoshi Hirose, Yukio Ikeda
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Patent number: 5385217Abstract: A vibration eliminating apparatus for eliminating vibration suspends a floor board from an installation floor. A supporting electromagnet is provided on the installation floor in order to suspend a magnetic member fixed to the floor board by a magnetic force. The magnetic member is provided with a thin magnetic pole through a non-magnetic member, and a control electromagnet having a yoke located in proximity to the thin magnetic pole is provided to control a horizontal position of the floor board. A vibration detector is provided to detect vibration of the floor board, and a vibration monitor is used to decide whether or not vibration detected by the vibration detector is within an allowable range of a machine mounted on the floor board and output an operation enable signal only when vibration is within the allowable range.Type: GrantFiled: May 19, 1992Date of Patent: January 31, 1995Assignee: Ebara CorporationInventors: Katsuhide Watanabe, Yoichi Kanemitu, Yukio Ikeda
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Patent number: 5352359Abstract: An ultraviolet reactor for purifying a liquid, comprising a housing of circular or rectangular cross-sections, a multiplicity of ultraviolet lamps accommodated in the housing, an inlet and outlet for the liquid, which are provided at both ends, respectively, of the housing, and a plurality of mixing baffle plates provided inside the housing at a proper pitch along a longitudinal axis of the housing so that the liquid flows at right angles to the ultraviolet lamps.Type: GrantFiled: February 1, 1993Date of Patent: October 4, 1994Assignees: Ebara Corporation, Kabushiki Kaisha ToshibaInventors: Hiroshi Nagai, Ken Nakajima, Yukio Ikeda, Noriyoshi Mashimo
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Patent number: 5350193Abstract: This invention relates to an air bag inflation gas generator to feed combustion gas for inflation of air bags such as air bags for absorbing collision shocks, life jackets, rafts, and escape chutes. When the generator is exposed to a high temperature environment such as fire and a temperature of a second end plate rises, heat of the second end plate is transmitted to an ignition agent via a heat sensing means, the ignition agent is ignited at a temperature thoroughly lower than the firing temperature of gas generating agents, and the gas generating agents burn.Type: GrantFiled: September 27, 1993Date of Patent: September 27, 1994Assignee: Nippon Koki Co., Ltd.Inventors: Mitsuaki Murashima, Sakae Takahashi, Yukio Ikeda, Hirokazu Kobari, Michio Shiota, Takashi Kazumi
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Patent number: 5346791Abstract: An electroconductive magnetic carrier which is composed of carrier particles, each of the carrier particles comprising a basic particle in which magnetic particles with an average particle diameter of 0.05 to 1.0 .mu.m are dispersed in a binder resin, and electroconductive finely-divided particles with an average particle diameter of 0.5 .mu.m or less which are fixed on the surface of said basic particle to form a carrier particle with an average particle diameter of 5 to 100 .mu.m; a developer which is composed of the above electroconductive magnetic carrier and an electrically insulating toner; and an image formation method of forming toner images on a photoconductor by using this developer are described.Type: GrantFiled: November 30, 1992Date of Patent: September 13, 1994Assignee: Kyocera CorporationInventors: Yoshio Ozawa, Yukio Ikeda, Katsuhiro Yoshioka
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Patent number: 5318873Abstract: An electroconductive magnetic carrier which is composed of basic particles, each of the basic particles comprising a binder resin and a magnetic material dispersed in the binder resin, and an electroconductive layer formed on the surface of the basic particle, a developer which is composed of the above electroconductive magnetic carrier and (b) an electrically insulating toner, and an image formation method of forming toner images on a photoconductor by using this developer are described.Type: GrantFiled: February 4, 1993Date of Patent: June 7, 1994Assignees: Kyocera Corporation, Takao KawamuraInventors: Takao Kawamura, Yasuo Nishiguchi, Yoshio Ozawa, Yukio Ikeda, Katsuhiro Yoshioka, Hiroshi Itoh
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Patent number: 5270668Abstract: A small-sized, high-efficiency semiconductor amplifier exhibits a satisfactory efficiency characteristic over a wide band and a low output level for secondary and tertiary higher harmonics.Type: GrantFiled: March 24, 1992Date of Patent: December 14, 1993Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Yukio Ikeda, Gen Toyoshima, Kiyoharu Seino, Tadashi Takagi
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Patent number: 5256513Abstract: An electroconductive magnetic carrier which is composed of basic particles, each of the basic particles comprising a binder resin and a magnetic material dispersed in the binder resin, and an electroconductive layer formed on the surface of the basic particle, a developer which is composed of the above electroconductive magnetic carrier and (b) an electrically insulating toner, and an image formation method of forming toner images on a photoconductor by using this developer are described.Type: GrantFiled: December 30, 1991Date of Patent: October 26, 1993Assignees: Kyocera Corporation, Takao KawamuraInventors: Takao Kawamura, Yasuo Nishiguchi, Yoshio Ozawa, Yukio Ikeda, Katsuhiro Yoshioka, Hiroshi Itoh
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Patent number: 5142240Abstract: A high frequency amplifier circuit comprises an amplitude characteristic correction circuit and a phase characteristic correction circuit for compensating the non-linearity of the input-output characteristics of the amplifier. The amplitude characteristic correction circuit varies the drain voltage or the collector voltage of the amplifier in accordance with the envelope level of an input signal in such a manner that the relationship between the amplitude of the output of the amplifier and the amplitude of the input signal has linearity. On the other hand, the phase characteristic correction circuit provides a quantity of phase shift to the input signal in accordance with the envelope level of the input signal, and the phase-shifted input signal is applied to the amplifier in such a manner that the phase of the output of the amplifier and that of the input signal coincide with each other.Type: GrantFiled: December 21, 1990Date of Patent: August 25, 1992Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Yoji Isota, Gen Toyoshima, Noriharu Suematsu, Yukio Ikeda, Tadashi Takagi, Shuji Urasaki
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Patent number: 5101172Abstract: A linear amplifier includes a variable attenuator and a phase shifter for modifying the amplitude and phase of an input signal to compensate for amplitude and phase distortion caused by non-linear characteristics of a high-powered amplifier utilized in a microwave band communications system. An amplitude comparator and a phase comparator compare the amplitudes and phases of input and output signals of the linear amplifier circuit to develop control signals for controlling the operation of the variable attenuator and phase shifter. The elimination of digital signal processing circuitry allows increased speed of operation that is essential for use in the microwave bands.Type: GrantFiled: December 19, 1990Date of Patent: March 31, 1992Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Yukio Ikeda, Gen Toyoshima, Noriharu Suematsu, Yoji Isota, Tadashi Takagi, Shuji Urasaki
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Patent number: 5093637Abstract: In a modulation system using an amplitude and a phase of a carrier wave as information such as a QPSK system, a modulation device modifies an input signal series to compensate the nonlinear characteristics of an amplifier located at a later stage, and provides a carrier wave modulated by the modified signal series to the amplifier. A first arithmetic circuit obtains an amplitude and a phase of an input signal by calculation. A ROM is set with correction data corresponding to the calculated amplitude so as to compensate the nonlinearity of the amplifier. A modification value generating circuit and a RAM output an amount of compensation so as to further modify the correction data according to part of an output signal from the amplifier to compensate amplifier characteristic changes due to temperature variations and the like. A second arithmetic circuit provides a signal series produced from the modified amplitude and phase to a quadrature modulator.Type: GrantFiled: December 21, 1990Date of Patent: March 3, 1992Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Yoji Isota, Gen Toyoshima, Noriharu Suematsu, Yukio Ikeda, Tadashi Takagi, Shuji Urasaki
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Patent number: 5093629Abstract: An amplifier circuit suitable for use in various types of communication devices, radar systems and the like, wherein a fundamental-wave signal extracted from an input side is converted into a second order signal and the second order signal is shifted so as to be opposite in phase and equal in amplitude to a second order signal produced by an amplifier such as an FET or multistage operational amplifier. The phase shifted signal is applied to the amplifier output, whereby the second order signal produced by the amplifier can assuredly be equivalently short-circuited and the operation efficiency of the amplifier can be improved.Type: GrantFiled: December 21, 1990Date of Patent: March 3, 1992Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Gen Toyoshima, Yukio Ikeda, Noriharu Suematsu, Yoji Isota, Tadashi Takagi, Shuji Urasaki
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Patent number: 5073268Abstract: Ultrapure water of extremely high purity, i.e. a so-called ultra-ultrapure water is formed by the present system for purifying a pure water or ultrapure water, (1) the TOC component which was contained in pipes, etc. and which was subsequently dissolved in a pure water or ultrapure water to be treated, is decomposed and the pure water or ultrapure water is simultaneously sterilized, by the combined use of an oxidizing agent and ultraviolet irradiation, (2) the DO contained in the water to be treated and the DO derived from the addition of the oxidizing agent are decomposed into H.sub.2 O and simultaneous sterilization is effected, by the combined use of H.sub.2 gas and ultraviolet irradiation, (3) the remaining H.sub.Type: GrantFiled: December 11, 1990Date of Patent: December 17, 1991Assignees: Ebara Corporation, Ebara Research Co., Ltd.Inventors: Takayuki Saito, Ken Nakajima, Yoki Iwase, Yukio Ikeda, Hiroyuki Shima
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Patent number: 5066316Abstract: The present invention presents an exhaust gas purifying apparatus characterized by a first electrode composed of an electric conductor in which its surface is formed as a projected formation, a second electrode composed of an electric conductor and disposed opposite to the first electrode, an electric insulator attached to at least one surface of the second electrode, opposite to the first electrode, a streamer corona generating portion composed of a high voltage electric power source connected to the first and second electrodes, means for injecting an adhesive oil into the surface of the electric insulator at the first electrode side, means for circulating the adhesive oil, a set member for removably supporting the streamer corona generating portion within a path duct of the exhaust gas, and further a contact member for contacting the second electrode when the streamer corona generating portion is mounted within a path duct of the exhaust gas.Type: GrantFiled: July 11, 1990Date of Patent: November 19, 1991Assignee: Niles Parts Co., Ltd.Inventor: Yukio Ikeda
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Patent number: 5050698Abstract: A system and method for automatically controlling a vehicle speed to a set desired cruise speed are disclosed in which a cruise speed control operation of a control portion is carried out only when a power supply for the system is turned on and all of vehicle speed set switches are turned off.Type: GrantFiled: January 2, 1990Date of Patent: September 24, 1991Assignee: Atsugi Unisia CorporationInventors: Takenori Maeda, Yukio Ikeda, Yasunori Shimada