Patents Assigned to Mitsubishi Corporation
  • Patent number: 7751193
    Abstract: An electronic control apparatus can be reduced in size and cost by eliminating certain component parts such as a power board, etc. The apparatus includes a housing, a heat sink, semiconductor switching elements having terminals and mounted on the heat sink, a circuit board arranged in opposition to the heat sink, conductive plates connecting between the circuit board and the semiconductor switching elements, and a cover receiving the semiconductor switching elements and the circuit board in cooperation with the heat sink. The conductive plates have the press-fit terminal portions press-fitted into the through holes in the circuit board, and the individual conductive plates are arranged along a lead-out direction in which the individual terminals of the semiconductor switching elements lead out, and are bonded to the individual terminals.
    Type: Grant
    Filed: June 18, 2007
    Date of Patent: July 6, 2010
    Assignee: Mitsubishi Corporation
    Inventors: Tsutomu Tominaga, Masahiro Kimata, Takayuki Kifuku, Shuzo Akiyama, Tadayuki Fujimoto
  • Patent number: 7749597
    Abstract: To provide a carbon fiber Ti—Al composite material having hardness, heat resistance and abrasion resistance, having reduced weight, improved strength, elastic modulus and thermal conductivity and being excellent in the uniformity of the quality. A carbon fiber Ti—Al composite material which is prepared by pressure impregnating a molded product containing fine carbon fibers having a fiber diameter of from 0.5 to 500 nm and a carbon length of at most 1,000 ?m and having a hollow-structured central axis, carbon long fibers having a fiber diameter of from 5 to 15 ?m and a titanium powder or a titanium oxide powder, with aluminum or an aluminum alloy by molten metal forging.
    Type: Grant
    Filed: June 2, 2005
    Date of Patent: July 6, 2010
    Assignees: Mitsubishi Corporation, FJ Composite Materials Co., Ltd., Advanced Material Technologies Co., Ltd.
    Inventors: Eiki Tsushima, Kazuyuki Murakami, Susumu Katagiri, Nobuyuki Suzuki
  • Patent number: 7563502
    Abstract: To provide a fine carbon fiber/metal composite material having high mechanical strength, a high thermal conductivity and a low coefficient of thermal expansion and suitable as a substrate for an electronic device. A fine carbon fiber/metal composite material, which is prepared by pressure impregnating a molded product containing fine carbon fibers having a fiber diameter of from 0.5 to 500 nm and a fiber length of at most 1,000 ?m, having a multilayer structure wherein cylindrical carbon layers overlap one another, and having a hollow-structured central axis, with aluminum, magnesium, copper or an alloy of such a metal, by molten metal forging.
    Type: Grant
    Filed: June 2, 2005
    Date of Patent: July 21, 2009
    Assignees: Mitsubishi Corporation, FJ Composite Materials Co., Ltd.
    Inventors: Eiki Tsushima, Kazuyuki Murakami, Susumu Katagiri
  • Patent number: 7494638
    Abstract: C60 and C70 carbon atom compounds are prepared by evaporating graphite in an inert quenching gas. The vapor of carbon is collected and is selectively extracted with an organic non-polar solvent.
    Type: Grant
    Filed: September 10, 1990
    Date of Patent: February 24, 2009
    Assignee: Mitsubishi Corporation
    Inventors: Donald R. Huffman, Wolfgang Krätschmer
  • Patent number: 7473410
    Abstract: C60 and C70 carbon atom compounds are prepared by evaporating graphite in an inert quenching gas. The vapor of carbon is collected and is selectively extracted with an organic non-polar solvent.
    Type: Grant
    Filed: May 2, 1994
    Date of Patent: January 6, 2009
    Assignee: Mitsubishi Corporation
    Inventors: Donald R. Huffman, Wolfgang Krätschmer
  • Publication number: 20080057303
    Abstract: To provide a novel process for producing a unidirectional carbon fiber reinforced carbon composite material having all of high thermal conductivity, low thermal expansion properties and high strength, useful as e.g. a semiconductor heatsink. Carbon fibers are impregnated with a liquid for impregnation prepared by dispersing or dissolving powdery carbon, fine carbon fibers having a fiber diameter of from 0.5 to 500 nm and a fiber length of at most 1,000 ?m and having a hollow-structured central axis and a thermosetting resin in a medium, and the carbon fibers are molded, cured and then carbonized so that they are aligned in one direction.
    Type: Application
    Filed: June 2, 2005
    Publication date: March 6, 2008
    Applicants: MITSUBISHI CORPORATION, FJ COMPOSITE Materials CO., LTD.
    Inventors: Eiki Tsushima, Kazuyuki Murakami, Susumu Katagiri
  • Publication number: 20080050589
    Abstract: To provide a fine carbon fiber/metal composite material having high mechanical strength, a high thermal conductivity and a low coefficient of thermal expansion and suitable as a substrate for an electronic device. A fine carbon fiber/metal composite material, which is prepared by pressure impregnating a molded product containing fine carbon fibers having a fiber diameter of from 0.5 to 500 nm and a fiber length of at most 1,000 ?m, having a multilayer structure wherein cylindrical carbon layers overlap one another, and having a hollow-structured central axis, with aluminum, magnesium, copper or an alloy of such a metal, by molten metal forging.
    Type: Application
    Filed: June 2, 2005
    Publication date: February 28, 2008
    Applicants: MITSUBISHI CORPORATION, FJ COMPOSITE MATERIALS CO., LTD.
    Inventors: Eiki Tsushima, Kazuyuki Murakami, Susumu Katagiri
  • Publication number: 20080026219
    Abstract: To provide a carbon fiber Ti—Al composite material having hardness, heat resistance and abrasion resistance, having reduced weight and improved strength and thermal conductivity and being excellent in uniformity of the quality. A carbon fiber Ti—Al composite material which is prepared by pressure impregnating a molded product containing fine carbon fibers having a fiber diameter of from 0.5 to 500 nm and a fiber length of at most 1,000 ?m and having a hollow-structured central axis and a titanium powder or a titanium oxide powder, with aluminum or an aluminum alloy by molten metal forging.
    Type: Application
    Filed: June 2, 2005
    Publication date: January 31, 2008
    Applicants: Mitsubishi Corporation, FJ Composite Materials Co.,Ltd., ADVANCED MATERIAL TECHNOLOGIES CO., LTD.
    Inventors: Eiki Tsushima, Kazuyuki Murakami, Susumu Katagiri, Nobuyuki Suzuki
  • Publication number: 20080003426
    Abstract: To provide a carbon fiber Ti—Al composite material having hardness, heat resistance and abrasion resistance, having reduced weight, improved strength, elastic modulus and thermal conductivity and being excellent in the uniformity of the quality. A carbon fiber Ti—Al composite material which is prepared by pressure impregnating a molded product containing fine carbon fibers having a fiber diameter of from 0.5 to 500 nm and a carbon length of at most 1,000 ?m and having a hollow-structured central axis, carbon long fibers having a fiber diameter of from 5 to 15 ?m and a titanium powder or a titanium oxide powder, with aluminum or an aluminum alloy by molten metal forging.
    Type: Application
    Filed: June 2, 2005
    Publication date: January 3, 2008
    Applicants: MITSUBISHI CORPORATION, FJ COMPOSITE MATERIALS CO., LTD., ADVANCED MATERIAL TECHNOLOGIES CO., LTD.
    Inventors: Eiki Tsushima, Kazuyuki Murakami, Susumu Katagiri, Nobuyuki Suzuki
  • Publication number: 20070299417
    Abstract: It is an object of the present invention to provide an absorbent article which does not cause discomfort to a wearer when worn, particularly after an absorber absorbs a body fluid to be swelled, and which is capable of receiving urine and feces separately. The object is attained by an absorbent article, including: a leak preventer having a sheet, and two bags provided separately on right and left of an upper side of the sheet, each of the two bags having an opening facing with each other; and an absorber having at least one layer and containing a super absorbent polymer and capable of absorbing a body fluid, provided in each of the two bags.
    Type: Application
    Filed: February 2, 2004
    Publication date: December 27, 2007
    Applicants: Japan Absorbent Technology Insttiute, Mitsubishi Corporation
    Inventors: Migaku Suzuki, Katsumi Ando, Satomi Takematsu, Hiroko Sekiguchi, Reiko Moriya
  • Publication number: 20060157354
    Abstract: The invention provides a system and a method for generating high pressure hydrogen that is able to efficiently and safely generate hydrogen by only the electrolysis of water even when using electric power generated by a frequently varying natural energy, such as sunlight, without using any compressors. The system comprises an electrolysis cell using polyelectrolyte membranes, particularly a double-polarity multi-layered type electrolysis cell having a specified structure disposed in a vessel for storing generated hydrogen, preferably for storing cooled hydrogen under a high pressure hydrogen atmosphere. High pressure hydrogen is generated by electrolysis of pure water using the electrolysis cell by suppressing the pressure applied to the cell to a pressure below the pressure resistance of the cell using a differential pressure sensor and pressure controller.
    Type: Application
    Filed: December 9, 2005
    Publication date: July 20, 2006
    Applicant: Mitsubishi Corporation
    Inventor: Hiroyuki Harada
  • Patent number: 7069252
    Abstract: A user registration processor unit registers the user registration information to the database, which includes the public key certification acquired from the certification authority that has jurisdiction over each party by the request from the transaction party including seller, buyer, and transportation company. A transfer registration processor unit changes the access right holder and the cargo owner of the shipment information registered to the database at the start of transaction in compliance with the request for request for changing registration of the party with the digital signature and public key certification attached. A verification processor unit achieves the transfer registration with legal binding power by verifying that the digital signature attached to the request for request for changing registration has been prepared by the private key which makes a pair with the public key certificate registered to the database and receiving the approval of the other party.
    Type: Grant
    Filed: January 7, 2003
    Date of Patent: June 27, 2006
    Assignees: Fujitsu Limited, Mitsubishi Corporation, NTT Communications Corporation, Sumitomo Corporation, Information-Technology Promotion Agency
    Inventors: Munehiko Ishimi, Hirofumi Fujiwara, Kazuhiko Sekine, Toshihiko Kaji, Toshiyuki Iida, Yoshihide Tanaka, Keiko Shiraishi, Akimitsu Yomoda, Seinosuke Kashima
  • Patent number: 7048839
    Abstract: The invention provides a system and a method for generating high pressure hydrogen that is able to efficiently and safely generate hydrogen by only the electrolysis of water even when using electric power generated by a frequently varying natural energy, such as sunlight, without using any compressors. The system comprises an electrolysis cell using polyelectrolyte membranes, particularly a double-polarity multi-layered type electrolysis cell having a specified structure disposed in a vessel for storing generated hydrogen, preferably for storing cooled hydrogen under a high pressure hydrogen atmosphere. High pressure hydrogen is generated by electrolysis of pure water using the electrolysis cell by suppressing the pressure applied to the cell to a pressure below the pressure resistance of the cell using a differential pressure sensor and pressure controller.
    Type: Grant
    Filed: January 29, 2003
    Date of Patent: May 23, 2006
    Assignee: Mitsubishi Corporation
    Inventor: Hiroyuki Harada
  • Publication number: 20050102222
    Abstract: In order to extend the condition of the credit or debt for the transaction, a supporting system for establishing an obligation, includes a requirement obtaining unit for obtaining a condition of an obligation desired by a user who desires to acquire a credit, for example, an obligation information obtaining unit for obtaining a detailed condition including amount and a collection due date of the obligation and an obligation composing unit for generating a composed obligation according to the condition obtained by the requirement obtaining unit by combining a plurality of obligations based on the detailed condition obtained by the obligation information obtaining unit.
    Type: Application
    Filed: July 18, 2003
    Publication date: May 12, 2005
    Applicant: MITSUBISHI CORPORATION
    Inventors: Kazuo Masuda, Masayo Saegusa
  • Patent number: 6789197
    Abstract: A data copyright management apparatus is used with a user terminal and comprises a CPU, a CPU bus, ROM, EEPROM, and RAM. The CPU, ROM, EPROM, and RAM are connected to the CPU bus, and a system bus of a device which utilizes the data can be connected to the CPU bus. A data copyright management system program, crypt algorithm, and user information are stored in the ROM, and a second private-key, a permit key, a second secret-key, and copyright information are stored in the EEPROM. A first public-key, a first private-key, a second public-key, and a first secret-key are transmitted to the RAM during operation. The data copyright management apparatus may be configured in the form of a monolithic or hybrid IC, a thin IC card, PC card, and insertion board which have a unique terminal. If a copyright management program is supplied externally, it is stored in the EEPROM. Otherwise, it is stored in the ROM.
    Type: Grant
    Filed: October 2, 2000
    Date of Patent: September 7, 2004
    Assignee: Mitsubishi Corporation
    Inventor: Makoto Saito
  • Patent number: 6744894
    Abstract: The present invention provides a system to ensure security of data in a computer network system. A center certifies a public-key of user of the system and distributes a secret-key. A first system comprises the center in a network, an information provider and a plurality of users. The center identifies utilization status by requests of the secret-key. The data is encrypted by the secret-key and is stored and transferred, while the data to be stored and transferred is encrypted by a secret-key different from the secret-key of the transferred data. An original data label is added to the original data, and an edit label is added to the edited data, and the center does not store the data and stores only the original data label and the edit label. A second system comprises a center and an information provider in a network, and a plurality of users utilizing the network. The center stores the original data and editing scenario, and also the original data label, user label and edit label.
    Type: Grant
    Filed: October 2, 1998
    Date of Patent: June 1, 2004
    Assignee: Mitsubishi Corporation
    Inventor: Makoto Saito
  • Patent number: 6741991
    Abstract: To prevent piracy or leakage of data content, a cryptography technique and electronic watermark technique are combined together and used. In a data content supplied to a user, a user data is entered as electronic watermark by a data management center, and the data content with an electronic watermark entered in it is encrypted using a crypt key and is supplied. The encrypted data content is decrypted using a crypt key distributed from the data management center and is used. In case it is to be stored, it is encrypted using another crypt key. In case the data content is copied and transferred to other user, a user data of the other user is entered as electronic watermark, and a scenario to enter the user data of the other user as electronic watermark is registered at the data management center, and the data content with electronic watermark entered in it is encrypted using another crypt key and is supplied.
    Type: Grant
    Filed: November 2, 2001
    Date of Patent: May 25, 2004
    Assignee: Mitsubishi Corporation
    Inventor: Makoto Saito
  • Patent number: 6734461
    Abstract: A SiC wafer comprises a 4H polytype SiC substrate 2 in which the crystal plane orientation is substantially {03-38}, and a buffer layer 4 composed of SiC formed over this SiC substrate 2. The {03-38} plane forms an angle of approximately 35° with respect to the <0001> axial direction in which micropipes and so forth extend, so micropipes and so forth are eliminated at the crystal sides, and do not go through to an active layer 6 on the buffer layer 4. Lattice mismatching between the SiC substrate 2 and the active layer 6 is suppressed by the buffer layer 4. Furthermore, anisotropy in the electron mobility is low because a 4H polytype is used. Therefore, it is possible to obtain a SiC wafer and a SiC semiconductor device with which there is little anisotropy in the electron mobility, and strain caused by lattice mismatching can be lessened, as well as a method for manufacturing these.
    Type: Grant
    Filed: March 7, 2002
    Date of Patent: May 11, 2004
    Assignees: Sixon Inc., Kansai Electric Power C.C., Inc., Mitsubishi Corporation, Sumitomo Electric Industries, Ltd.
    Inventors: Hiromu Shiomi, Tsunenobu Kimoto, Hiroyuki Matsunami
  • Patent number: 6721887
    Abstract: A system is provided which manages the copyright of a plurality of data in a database. A data copyright management system is provided in which a primary user edits data which he or she obtains and supplies edited data to a secondary user. In a case where new data is produced by editing a plurality of encrypted data obtained from the database, and is encrypted for distribution to another person, crypt keys for a plurality of data as raw material and an edit program which is an editing process with a digital signature are used as a use permit key. The system comprises a database and a key control center, and uses a primary copyright label, a first use permit key including a first crypt key, a second use permit key, a third crypt key, and a copyright management program. The primary user uses primary copyrighted data encrypted using the first crypt key, by decrypting it with the first use permit key obtained from the key control center.
    Type: Grant
    Filed: May 23, 2002
    Date of Patent: April 13, 2004
    Assignee: Mitsubishi Corporation
    Inventor: Makoto Saito
  • Publication number: 20040024708
    Abstract: In order to reduce the burden of the work or the remittance service charge, a remittance management system for managing a remittance performed by a client from a remitter account at a first financial institution to a remittee account at a second financial institution, includes a deposit confirming unit for confirming that money has been transferred from the remitter account to the first account at the first financial institution managed by the remittance management system and a remitter changing unit for changing the remitter by ordering to remit money from the second account at the second financial institution managed by the remittance management system to the remittee account instead of a remittance from the first account to the remittee account caused by a deposit to the first account.
    Type: Application
    Filed: July 18, 2003
    Publication date: February 5, 2004
    Applicant: MITSUBISHI CORPORATION
    Inventors: Kazuo Masuda, Masayo Saegusa