Patents Assigned to Mitsui
  • Paste for circuit connection, anisotropic conductive paste and uses thereof
    Patent number: 6939431
    Abstract: Pastes for circuit connections and anisotropic conductive pastes that are excellent in storage stability and dispenser application properties, can be free of voids, bubbles and bleeding on thermocompression bonding and can give cured products having high bonding and connection reliability at high temperatures and high humidity, and the ability to be repaired. The paste for circuit connection contains an epoxy resin, an acid anhydride curing agent or a phenolic curing agent, and high-softening point fine particles. The anisotropic conductive paste additionally contains conductive particles. The method of using the paste for circuit connection or the anisotropic conductive paste involves connecting an electric circuit wiring formed on a substrate with an electric circuit wiring formed on another substrate with the paste for circuit connection or the anisotropic conductive paste.
    Type: Grant
    Filed: December 2, 2002
    Date of Patent: September 6, 2005
    Assignees: Mitsui Chemicals, Inc., Sharp Corporation
    Inventors: Yasushi Mizuta, Tatsuji Murata, Makoto Nakahara, Takatoshi Kira, Daisuke Ikesugi
  • Metallocene compound, process for producing metallocene compound, olefin polymerization catalyst, process for producing polyolefin, and polyolefin
    Patent number: 6939928
    Abstract: The metallocene compound according to the invention and the olefin polymerization catalyst containing the compound are intended to produce a catalyst capable of preparing an isotactic polymer with a high polymerization activity. The metallocene compound contains a substituted cyclopentadienyl group and a (substituted) fluorenyl group and has a structure wherein these groups are bridged by a hydrocarbon group or the like. The process for preparing a metallocene compound according to the invention is intended to selectively prepare a specific metallocene compound so as not to produce an isomer, and in this process an intermediate product is synthesized by a specific method.
    Type: Grant
    Filed: October 5, 2000
    Date of Patent: September 6, 2005
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Koji Kawai, Masahiro Yamashita, Yasushi Tohi, Nobuo Kawahara, Kenji Michiue, Hiromu Kaneyoshi, Ryoji Mori
  • Nickel powder, method for preparing the same and paste for use in making electrodes for electronic parts
    Patent number: 6939390
    Abstract: Nickel powder includes, on the basis of the total number of particles, not less than 10% of particles whose particle size is not less than 1.2 times the average particle size, as determined by the SEM observation; and not less than 10% of particles whose particle size is not more than 0.8 times the average particle size, as determined by the SEM observation. The nickel powder can be prepared by, for instance, precipitating nickel particles from an aqueous solution containing a nickel salt and a hydrazine reducing agent, without forming any hydroxide of nickel as an intermediate. A conductive paste containing the nickel powder can be applied onto an internal or external electrode for electronic parts.
    Type: Grant
    Filed: July 1, 2003
    Date of Patent: September 6, 2005
    Assignee: Mitsui Mining and Smelting Co., Ltd.
    Inventors: Yoshiharu Toshima, Takao Hayashi, Yasuhide Yamaguchi, Hiroyuki Shimamura
  • Metallic salt of N4-acylcytidine derivatives, and a method for producing N4-acylcytidine derivatives using the same
    Publication number: 20050192433
    Abstract: The present invention provides a method for producing a high purity N4-acylcytidine derivative. More specially, the invention provides a compound represented by the formula (1): wherein R1 represents a hydrogen atom, an alkyl group having 1 to 4 carbon atoms, an alkenyl group having 2 to 4 carbon atoms, an alkynyl group having 2 to 4 carbon atoms, a perfluoroalkyl group having 1 to 4 carbon atoms, or a halogen atom; R2 is a hydrogen atom, an alkoxyl group having 1 to 4 carbon atoms, an alkoxyl group having 1 to 4 carbon atoms with a substituent, or a halogen atom; R3 represents a methyl group or a phenyl group; and M represents a positive ion of an alkali metal or an alkaline earth metal, and a compound represented by the formula (2): wherein R1, R2, and R3 are as defined above, produced by using the compound represented by the formula (1).
    Type: Application
    Filed: February 14, 2005
    Publication date: September 1, 2005
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Hideki Umetani, Hiroki Ishibashi, Atsushi Sakuma
  • Resin compositions and use of the same
    Patent number: 6936660
    Abstract: Soft resin compositions comprising a polyethylene resin (A) and an ethylene/?-olefin random copolymer (B) comprising ethylene and an ?-olefin having 3 to 20 carbon atoms at a specific proportion, or an ethylene/?-olefin copolymer resin composition comprising a linear ethylene/?-olefin copolymer (A-?) comprising ethylene and an ?-olefin having 4 to 20 carbon atoms and a long-chain branched ethylene/?-olefin random copolymer (B-?) comprising ethylene and an ?-olefin having 3 to 20 carbon atoms in a specific proportion, wherein a density and MFR of the polyethylene resin (A) and the copolymer (A-?), and a density, MFR, intrinsic viscosity, glass transition temperature crystallinity, molecular weight distribution, B value and g?* values of the copolymers (B) and (B-?) are each in a specific range.
    Type: Grant
    Filed: January 29, 2004
    Date of Patent: August 30, 2005
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Mamoru Kagami, Yasuo Tanaka, Masahiro Sugi
  • Lead frame having chip mounting part and leads of different thicknesses
    Patent number: 6936915
    Abstract: A lead frame according to this invention comprises: a semiconductor chip mounting part having an engagement hole formed on its one side; and a lead part including a supporting lead fit in said engagement hole of the semiconductor chip mounting part so as to support said semiconductor chip mounting part, said supporting lead being made of a thinner-walled material than that of the semiconductor chip mounting part and an outer lead arranged in parallel to said supporting lead. The supporting lead involves a fitting portion having a wider width than a lead width of the supporting lead and fit in said engagement hole of said semiconductor chip mounting part.
    Type: Grant
    Filed: November 1, 2001
    Date of Patent: August 30, 2005
    Assignee: Mitsui High-tec, Inc.
    Inventor: Katsufusa Fujita
  • Method for purifying protected 2?-deoxycytidines and hydrated crystals thereof
    Patent number: 6936709
    Abstract: A protected 2?-deoxycytidine is purified by precipitating the protected 2?-deoxycytidine represented by general formula (3) in the form of a hydrated crystal from a solution containing the protected 2?-deoxycytidine and water, and by recovering the protected 2?-deoxycytidine: wherein R1 represents a 4-methoxytrityl, 4, 4?-dimethoxytrityl, or triphenylmethyl group; and B1 represents a cytosine group having a protected amino group. The compound represented by general formula (3) is, in particular, a protected 2?-deoxycytidine represented by formula (4): The 2?-deoxycytidine is used as a raw material for antisense DNA.
    Type: Grant
    Filed: June 4, 2003
    Date of Patent: August 30, 2005
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Hiroki Ishibashi, Kiyoteru Nagahara, Yasushi Fukuiri, Yasuko Matsuba
  • Poly (alkylene oxide) prepared in the presence of a phosphazenium salt or compound
    Patent number: 6936684
    Abstract: A salt useful as an active species in an organic reaction and represented by the following chemical formula (1): wherein n stands for an integer of from 1 to 8, Zn? represents an n-valent anion of an active hydrogen compound, a, b, c and d each stands for a positive integer, and Rs represent the same or different hydrocarbon groups. In addition, a simple and efficient process is provided for producing a poly(alkylene oxide) by polymerizing an alkylene oxide compound in the presence of the salt represented by the chemical formula (1).
    Type: Grant
    Filed: June 11, 2003
    Date of Patent: August 30, 2005
    Assignee: Mitsui Toatsu Chemicals, Incorporated
    Inventors: Tadahito Nobori, Masahiro Kouno, Toshiaki Suzuki, Kazumi Mizutani, Shinji Kiyono, Yoshiho Sonobe, Usaji Takaki
  • Powered sliding device for vehicle slide door
    Patent number: 6935071
    Abstract: In the present powered sliding device for a vehicle slide door, when a center bracket is relatively rotated with respect to a slide door due to an overview shape of a center rail during a sliding movement of the slide door, the center pulley is relatively displaced in a certain amount by the rotation of the center bracket with respect to the slide door, but the center pulley is not displaced any further than the certain amount by the rotation of the center bracket.
    Type: Grant
    Filed: June 19, 2003
    Date of Patent: August 30, 2005
    Assignee: Mitsui Kinzoku Kogyo Kabushiki Kaisha
    Inventors: Kazuhito Yokomori, Shoji Wakatsuki
  • Synthetic resin molding mold, apparatus for and method of adjusting a temperature of the mold
    Patent number: 6936206
    Abstract: There is provided an arrangement of a mold including a mold base (1), a cavity block (2) provided within the mold base (1), a heat insulating layer (5) provided between the mold base (1) and the cavity block (2), and a system of a flow passage (A) through which a heating medium and a cooling medium are alternately and repeatedly supplied, wherein a space is provided at a contact portion between the cavity block (2) and the mold base (1) based on anticipation of a thermal expansion of the cavity block (2). Further, the cavity block (2) may be arranged to have inlet and outlet slots communicating with the channel (A), and the inlet and outlet slots may be attached with conduits thermally insulated from the mold base (1).
    Type: Grant
    Filed: April 28, 2000
    Date of Patent: August 30, 2005
    Assignees: Mitsui Chemicals, Inc., Ono Sangyo Co., Ltd.
    Inventors: Yosihisa Satoh, Akihiko Imagawa, Masahiko Yamaki, Masataka Takamura, Masayuki Nunome, Kazumi Shinto
  • Silver powder made of silver particles, each to which fine silver particles adhere and process of producing the same
    Publication number: 20050183543
    Abstract: This invention is a silver powder having a low-temperature sintering performance and dispersibility, which allows the powder particles to be agglomerated to a small degree and be nearly in the monodisperse state. Employed is silver powder of fine silver particles each to which fine silver particles adhere, wherein fine silver particles of nano-order particle size are adhered to the surface of each silver powder particle. The powder particles of the silver powder of fine silver particles each to which fine silver particles adhere have excellent dispersibility.
    Type: Application
    Filed: January 19, 2005
    Publication date: August 25, 2005
    Applicant: Mitsui Mining and Smelting Co., Ltd.
    Inventors: Takuya Sasaki, Masashi Kato, Taku Fujimoto, Takahiko Sakaue, Katsuhiko Yoshimaru
  • Vehicle door handle device
    Publication number: 20050184535
    Abstract: A vehicle door handle device includes a base case secured to a door, and an L-shaped handle lever rotatably mounted on the base case by a supporting shaft and connected to a latch device of the door by way of a connecting member. The handle lever includes an operation arm extending in a first direction and receiving a manual operational force and a coupling arm extending in a second direction substantially orthogonal to the first direction to be connected to the connecting member. The operation arm is made of a synthetic resin and has a small specific gravity, and the coupling arm is made of a metal and has a great specific gravity. The base portions of the operation arm and the coupling arm are undetachably coupled with each other by the supporting shaft.
    Type: Application
    Filed: June 10, 2004
    Publication date: August 25, 2005
    Applicant: MITSUI MINING & SMELTING CO., LTD.
    Inventor: Jun Odahara
  • Aromatic diamine and polyimide thereof
    Patent number: 6933411
    Abstract: The aromatic diamine compound of the present invention is represented by the following formula (1), and from the aromatic diamine compound a polyimide having a repeating unit represented by the following formula (4), which has low-temperature adherability, can be obtained. In the formulas (1) and (4), n is an integer of 3 to 7, each R is independently an atom or a group selected from the group consisting of a hydrogen atom, a halogen atom and a hydrocarbon group, the same or different two hetero atoms selected from nitrogen atoms and oxygen atoms bonded to each benzene ring are at the ortho- or meta-positions to each other on at least one benzene ring, and when n is 3, the hetero atoms are at the ortho- or meta-positions to each other on all the benzene rings. In the formula (4), Y is a tetravalent organic group.
    Type: Grant
    Filed: November 24, 2003
    Date of Patent: August 23, 2005
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Naoshi Nagai, Masaru Kawaguchi
  • Sealant for polypropylene and easily openable hermetically sealed package including the same
    Patent number: 6933346
    Abstract: A sealant for polypropylene consisting essentially of a composition comprising a high-pressure-processed low-density polyethylene (A) having a density of 910 to 930 kg/m3 and an MFR of 0.5 to 20 g/10 min; and an ethylene/?-olefin copolymer (B) having a density of 860 to less than 890 kg/m3, an MFR of 0.5 to 40 g/10 min and an Mw/Mn of 1.5 to 3, and/or a linear low-density polyethylene (C) having a density of 890 to 940 kg/m3 and an MFR of 0.2 to 30 g/10 min. In this composition, the component (A) is contained in an amount of 10 to 85% by weight, the component (B) in an amount of 50% by weight or less, and the component (B) and component (C) in a total amount of 15 to 90% by weight, based on the total weight of components (A), (B) and (C).
    Type: Grant
    Filed: December 19, 2001
    Date of Patent: August 23, 2005
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Naoto Yasaka, Masayoshi Yamaguchi
  • Optical recording medium
    Publication number: 20050180305
    Abstract: There is disclosed an optical recording medium including a recording layer, one or more intermediate layers, and a printable or typable surface protective layer disposed in this order on a transparent substrate having an annular plate shape, the optical recording medium having an inner peripheral portion in which the recording layer is not formed on an inner peripheral side in a radial direction of the transparent substrate, wherein the surface protective layer is formed in at least a part of the inner peripheral portion, and a hydrophobic intermediate layer is directly formed on the transparent substrate in a region of the inner peripheral portion in which the surface protective layer is formed. Label information can be formed on the optical recording medium even in an innermost peripheral hub portion by printing or the like.
    Type: Application
    Filed: November 8, 2002
    Publication date: August 18, 2005
    Applicant: MITSUI CHEMICALS , INC
    Inventors: Chiaki Yokota, Satoru Suda, Masatoshi Yanagimachi
  • Automatic opening/closing apparatus for vehicle
    Publication number: 20050177977
    Abstract: The force from a drive rod driven by an electric motor is transmitted via a link arm pivotally linked to the drive rod and a back door. When the back door is operated in opening direction, the link arm is supported by open-side support sliders and the acting direction of the force applied to the link arm by the drive rod is shifted to the opening direction of the back door. When the back door is operated in dosing direction, the link arm is supported by closed-side support slider and a closed-side support roller and the acting direction of the force applied to the link arm by the drive rod is shifted to the closing direction of the back door. The open-side and closed side support sliders are pressed against the link arm by leaf spring members so that the link arm is prevented from oscillating between the sliders.
    Type: Application
    Filed: February 15, 2005
    Publication date: August 18, 2005
    Applicants: Honda Motor Co., Ltd., Mitsui Mining and Smelting Co., Ltd., Mitsuba Corporation
    Inventors: Takeshi Hattori, Ryoji Araki, Osamu Sera, Masashi Shimizu, Yasushi Yoshida
  • Propylene polymer compositions
    Patent number: 6930152
    Abstract: A propylene polymer composition is prepared by mixing propylene homo- or co-polymer (A) obtained using a transition metal catalyst compound (h), defined herein, with a co-catalyst, e.g., organoaluminum oxy compound, with an olefin elastomer (D) and another olefin polymer (E), e.g., polyethylene. Alternatively, the combination of propylene polymer (A), olefin elastomer (D) and olefin polymer (E) is prepared by a multi-stage polymerization method. In both cases, the propylene homo- or co-polymer (A) may include a second propylene homo- or co-polymer (A?) wherein the ratio of intrinsic viscosities of propylene polymers (A) and (A?) is in the range of 3 to 30. These propylene polymer compositions are excellent in heat resistance, mechanical strength, tensile elongation at break, etc., and can be used in the fabrication of structural materials, films and sheets.
    Type: Grant
    Filed: December 11, 2003
    Date of Patent: August 16, 2005
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Mikio Hashimoto, Takasi Ueda, Masaaki Kawasaki, Satoru Moriya, Akira Mizuno, Daisuke Fukuoka, Junichi Imuta, Keiji Hirose, Junji Saito, Yoshihisa Kiso
  • Hydrocarbon compounds, materials for organic electroluminescent elements and organic electroluminescent elements
    Patent number: 6929870
    Abstract: An electroluminescent element in which at least one layer containing at least one of novel hydrocarbon compounds with an anthracene ring and a fluorene ring directly bound is held between a pair of electrodes. The compounds can advantageously be used in a luminescent element and provide an organic electroluminescent element having an excellent luminescent efficiency and a long luminescent life.
    Type: Grant
    Filed: August 10, 2001
    Date of Patent: August 16, 2005
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Tsutomu Ishida, Takehiko Shimamura, Yoshiyuki Totani, Masakatsu Nakatsuka
  • CAMELLIA SINENSIS GENE ENCODING A CAFFEINE SYNTHESIS ASSOCIATED N-METHYL TRANSFERASE WITH 7-METHYLXANTHINE N3 METHYL TRANSFERASE, THEOBROMINE N1 METHYL TRANSFERASE, AND PARAXANTHINE N3 METHYL TRANSFERASE ACTIVITIES AND USE THEREOF
    Patent number: 6930227
    Abstract: The present invention makes it possible to efficiently produce an N-methyl transferase with 7-methylxanthine N3 methyl transferase, theobromine N1 methyl transferase, and paraxanthine N3 methyl transferase activities that can be utilized as an industrial, food, or medical enzyme. In addition, the present invention makes it possible to modify the caffeine biosynthesis metabolism of caffeine producing plants, plant tissues, or plant cells, thereby efficiently producing caffeine metabolism based compounds or modifying the production of caffeine in the plants.
    Type: Grant
    Filed: May 25, 2000
    Date of Patent: August 16, 2005
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Misako Mizuno, Hiroshi Ashihara, Kouichi Mizuno, Tatsuhito Fujimura
  • Method for producing 2-alkyl-3-aminothiophene derivative
    Publication number: 20050176971
    Abstract: A method for reducing a sulfur-containing compound by hydrogenation using a noble metal catalyst which method is exemplified by an industrial method for producing a 2-alkyl-3-aminothiophene derivative with high economical efficiency by hydrogenating a 2-alkenyl-3-aminothiophene derivative using the noble metal catalyst. 2-Alkyl-3-aminothiophene derivatives are useful compounds in the fields of medicine and agriculture, and in particular, useful in bactericides for agriculture or gardening, or intermediates of the bactericides. The hydrogenation reaction temperature is controlled at 150° C. to 300° C. and the method allows the used noble metal catalyst to be recovered and reused.
    Type: Application
    Filed: July 22, 2003
    Publication date: August 11, 2005
    Applicant: Mitsui Chemicals, Inc.
    Inventors: Daisuke Ura, Hiroyuki Katsuta, Toshio Kitashima, Kenichi Sato