Patents by Inventor Koichi Mizuno
Koichi Mizuno 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).
-
Patent number: 5757243Abstract: An effective high frequency oscillator is made of a plurality of Josephson devices. A high frequency converter as a high frequency circuit is made of the high frequency oscillator, nonlinear superconductor devices, and transmission line. Josephson devices are connected in parallel to make a superconductor module. Then superconductive modules are connected in series for high frequency via a phase locking circuit such as a thin film type capacitor to make the high frequency oscillator. Consequently, the high frequency oscillator is used as a local oscillator for a frequency converter. The high frequency system comprises a high frequency package housing a high frequency circuit, a cooling unit including a low temperature stage in thermal contact with the high frequency package, and a shielding case for housing the high frequency circuit and the low temperature stage. The high frequency system of the present invention provides a small-sized and power-saving high frequency circuit having operational stability.Type: GrantFiled: May 13, 1996Date of Patent: May 26, 1998Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Koichi Mizuno, Akira Enokihara, Hidetaka Higashino, Kentaro Setsune
-
Patent number: 5481119Abstract: A superconducting element includes a superconducting thin film bridge extending along the surface of a substrate, and a control electrode member for injecting quasi particles into a portion of an intersection region of the superconducting thin film bridge. The intersection region extends across the superconducting thin film bridge in a direction which is perpendicular to the current flow direction of the superconducting thin film bridge. A remaining portion of the intersection region, which is not injected with quasi particles by the control electrode member, operates as a weak-coupling bridge to thereby control the current flow within the superconducting thin film bridge.Type: GrantFiled: August 7, 1992Date of Patent: January 2, 1996Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Hidetaka Higashino, Koichi Mizuno, Kentaro Setsune
-
Patent number: 5480859Abstract: A superconductor device is provided including a base, a base electrode formed on the base which is made of a Bi-system oxide superconductive material containing an alkaline earth metal, a barrier layer formed on the base electrode which is made of Bi--Sr--Cu--O, a counter electrode formed on the barrier layer which is made of a Bi-system oxide superconductive material containing an alkaline earth metal, a contact electrode formed so as contact with the counter electrode, and a separation layer for separating said contact electrode from said base electrode.Type: GrantFiled: January 21, 1994Date of Patent: January 2, 1996Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Koichi Mizuno, Hidetaka Higashino, Kentaro Setsune
-
Patent number: 5462921Abstract: A method of fabricating a thin-film Hg-containing oxide superconductor is disclosed, which comprises forming a thin film on a substrate, said thin film containing mercury, an alkaline earth element, and copper as main components thereof; and subjecting said substrate with the thin film to a heat treatment in an oxygen-containing atmosphere at an oxygen partial pressure of 1/500 to 1/10 atm, to convert said thin film to the thin-film superconductor.Type: GrantFiled: May 9, 1994Date of Patent: October 31, 1995Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Hideaki Adachi, Kentaro Setsune, Koichi Mizuno
-
Patent number: 5434126Abstract: A thin-film superconductor includes a substrate, a ferroelectric film, and a superconducting oxide film. The ferroelectric film extends on the substrate. The ferroelectric film is made of a crystal contains Bi and O. The superconducting oxide film extends on the ferroelectric film, and containing Bi, Cu, and an alkaline-earth metal element. The superconducting oxide film may contain at least two different alkaline-earth metal elements.Type: GrantFiled: March 25, 1994Date of Patent: July 18, 1995Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Yo Ichikawa, Koichi Mizuno, Toshifumi Sato, Hideaki Adachi, Kentaro Setsune
-
Patent number: 5354962Abstract: A halogenated organic compound is introduced into a plasma. In the plasma state, substances are very reactive and chemical substances which are not readily decomposed such as halogenated organic compounds are decomposed in a short time. Specifically, in a high-temperature plasma exceeding 10,000.degree. C., almost all molecules are considered to dissociate into atoms. A reactive substance such as water is introduced into a plasma together with a halogenated organic compound. The decomposed halogenated organic compound is caused to react with the reactive substance, for preventing the decomposed organic compound from returning to its original state.Type: GrantFiled: January 14, 1994Date of Patent: October 11, 1994Assignees: Agency of Industrical Science and Technology, Toyonobu Yoshida, JEOL Ltd.Inventors: Koichi Mizuno, Takeshige Wakabayashi, Yutaka Koinuma, Reiji Aizawa, Satoshi Kushiyama, Satoru Kobayashi, Hideo Ohuchi, Toyonobu Yoshida, Yoshiro Kubota, Takanobu Amano, Hisashi Komaki, Shoji Hirakawa
-
Patent number: 5282886Abstract: A mixed gas is contacted with a non-carbonaceous adsorbent while irradiating the adsorbent with an electromagnetic wave having a frequency of 1 MHz to 25 GHz, such as a microwave, so that a gas component having a smaller coefficient of dielectric loss is selectively adsorbed by the adsorbent. A gas adsorbed on an adsorbent may be desorbed therefrom by contact with a desorbing gas while irradiating the adsorbent with the above electromagnetic wave.Type: GrantFiled: September 9, 1992Date of Patent: February 1, 1994Assignee: Director-General of Agency of Industrial Science and TechnologyInventors: Satoru Kobayashi, Koichi Mizuno, Satoshi Kushiyama, Reiji Aizawa, Yutaka Koinuma, Hideo Ohuchi
-
Patent number: 5275792Abstract: A nitrogen oxides-containing gas is contacted with a solid catalyst in the presence of methyl tert-butyl ether as a reducing agent for the conversion of the nitrogen oxides into molecular nitrogen. A supported catalyst including an alumina carrier having Pt, Rh or Ru supported thereon is desirably used as the solid catalyst.Type: GrantFiled: November 18, 1992Date of Patent: January 4, 1994Assignee: Agency of Industrial Science and TechnologyInventors: Akira Obuchi, Atsushi Ogata, Koichi Mizuno, Akihiko Ohi, Hideo Ohuchi
-
Patent number: 5187344Abstract: A halogenated organic compound is introduced into a plasma. In the plasma state, substances are very reactive and chemical substances which are not readily decomposed such as halogenated organic compounds are decomposed in a short time. Specifically, in a high-temperature plasma exceeding 10,000.degree. C., almost all molecules are considered to dissociate into atoms. A reactive substance such as water is introduced into a plasma together with a halogenated organic compound. The decomposed halogenated organic compound is caused to react with the reactive substance, for preventing the decomposed organic compound from returning to its original state.Type: GrantFiled: April 11, 1991Date of Patent: February 16, 1993Assignees: Agency of Industrial Science and Technology, Toyonobu Yoshida, JEOL Ltd.Inventors: Koichi Mizuno, Takeshige Wakabayashi, Yutaka Koinuma, Reiji Aizawa, Satoshi Kushiyama, Satoru Kabayashi, Hideo Ohuchi, Toyonobu Yoshida, Yoshiro Kubota, Takanobu Amano, Hisashi Komaki, Shoji Hirakawa
-
Patent number: 5141714Abstract: An exhaust gas cleaner comprising (a) at least one filter made of a heat-resistant and electrically insulating material for trapping floating fine particles in an exhaust gas; and (b) at least a pair of electrodes stacked with the filter alternately, voltage being applied between the adjacent electrodes to burn electrically conductive and burnable fine particles trapped in the filter by heat generated by a current flowing between the adjacent electrodes, and the direction of the flow of the exhaust gas in the filter being essentially parallel to that of the laminate surface of the electrodes. The filter may carry a catalyst which functions to reduce harmful gas components in the exhaust gas.Type: GrantFiled: July 31, 1990Date of Patent: August 25, 1992Assignee: Kabushiki Kaisha RikenInventors: Akira Obuchi, Hidenori Yoshiyama, Akihiko Ohi, Hyogoro Aoyama, Hideo Ohuchi, Atsushi Ogata, Koichi Mizuno, Seiji Makino, Kiyohide Yoshida, Gyo Muramatsu, Nobuyuki Matsumura, Satoshi Sumiya, Yoshikazu Takahashi
-
Patent number: 5047390Abstract: A Josephson device, comprising a junction formed by forming the first layer-shaped oxide superconductor thin film including a plurality of Cu-O layers on a substrate, a barrier layer thereon and the second layer-shaped oxide superconductor thin film on the barrier layer. The Josephson device according to the present invention is manufactured by forming the first layer-shaped oxide superconductor thin film on a substrate, forming a barrier layer in the same vacuum chamber, defining patterns to said barrier layer and said first layer-shaped oxide superconductor thin film, forming an interlayer insulating film on said barrier layer, removing said interlayer insulating film in a region serving as a junction, effecting exposure to oxygen plasma, forming the second layer-shaped oxide superconductor thin film in contact with a part of the surface of said barrier layer and defining patterns to said second layer-shaped oxide superconductor thin film.Type: GrantFiled: September 27, 1989Date of Patent: September 10, 1991Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Hidetaka Higashino, Koichi Mizuno, Hideaki Adachi, Kentaro Setsune, Akira Enokihara, Shinichiro Hatta, Kiyotaka Wasa, Shigemi Kohiki, Tomoaki Matsushima
-
Patent number: 5026464Abstract: A halogenated organic compound is introduced into a plasma. In the plasma state, substances are very reactive and chemical substances which are not readily decomposed such as halogenated organic compounds are decomposed in a short time. Specifically, in a high-temperature plasma exceeding 10,000.degree. C., almost all molecules are considered to dissociate into atoms. A reactive substance such as water is introduced into a plasma together with a halogenated organic compound. The decomposed halogenated organic compound is caused to react with the reactive substance, for preventing the decomposed organic compound from returning to its original state.Type: GrantFiled: November 7, 1989Date of Patent: June 25, 1991Assignees: Agency of Industrial Science and Technology, Toyonobu Yoshida, JEOL Ltd.Inventors: Koichi Mizuno, Takeshige Wakabayashi, Yutaka Koinuma, Reiji Aizawa, Satoshi Kushiyama, Satoru Kabayashi, Hideo Ohuchi, Toyonobu Yoshida, Yoshiro Kubota, Takanobu Amano, Hisashi Komaki, Shoji Hirakawa
-
Patent number: 4892855Abstract: Methanol is produced by contacting a mixed gas containing hydrogen and carbon monoxide with a catalyst which includes a carrier formed of a taeniolite, and a catalytic component containing palladium and carried by the carrier at an elevated temperature.Type: GrantFiled: August 30, 1988Date of Patent: January 9, 1990Assignee: Director-General of Agency of Industrial Science and TechnologyInventors: Koichi Mizuno, Masahiro Saito, Tadao Takahashi, Reize Aizawa
-
Patent number: 4580250Abstract: An ultrasonic detection circuit for detecting obstacles behind a backing motor vehicle, and an ultrasonic communication circuit are automatically switched such that the ultrasonic detection circuit is operable only when the communication circuit is not in use. Furthermore, the ultrasonic detection circuit may be operated only when the motor vehicle is in one or more particular operating conditions. The system comprises a rear ultrasonic transducer used for both the detection circuit and for the communication circuit so that detection of obstacles behind the vehicle and communication with another motor vehicle behind the vehicle are possible, and a front ultrasonic transducer used for only the communication circuit so that communication with another motor vehicle ahead of the vehicle is also possible.Type: GrantFiled: July 26, 1983Date of Patent: April 1, 1986Assignee: Nippon Soken, Inc.Inventors: Yoshiyuki Kago, Shigeyuki Akita, Koichi Mizuno
-
Patent number: 4431566Abstract: A gas stream containing methanol is contacted with a catalyst including nickel and potassium supported on an alumina carrier, whereby the methanol is converted into hydrogen and carbon monoxide.Type: GrantFiled: March 1, 1982Date of Patent: February 14, 1984Assignee: Director-General of Agency of Industrial Science & TechnologyInventors: Masaomi Suzuki, Koichi Mizuno