Patents Assigned to Mitsui
  • Patent number: 7189763
    Abstract: A crosslinked olefin elastomer foam has a specific gravity of 0.05 to 0.2, an expansion ratio of 8 to 15, a compression set of 30 to 60% and a tear strength of 1.5 to 2.5 kg/cm. The crosslinked foam is obtained by heating an elastomer composition comprising a specific ethylene/?-olefin copolymer, an organic peroxide, a crosslinking auxiliary and a foaming agent. The crosslinked foam has a high expansion ratio, is free from surface roughening attributed to defoaming, realizes a soft touch, exhibits a low compression set and is excellent in mechanical strength (particularly tear strength) and heat resistance.
    Type: Grant
    Filed: June 5, 2003
    Date of Patent: March 13, 2007
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Takanori Sueda, Naoto Yasaka, Chong-Sun Yoo, Jeong-Sik Yoon, Kyung-Man Choi, Kwon-Ik Lee
  • Patent number: 7189764
    Abstract: A crosslinked olefin elastomer foam has a specific gravity of 0.05 to 0.2, an expansion ratio of 8 to 15, a compression set of 30 to 60% and a tear strength of 1.5 to 2.5 kg/cm. The crosslinked foam is obtained by heating an elastomer composition comprising a specific ethylene/?-olefin copolymer, an organic peroxide, a crosslinking auxiliary and a foaming agent. The crosslinked foam has a high expansion ratio, is free from surface roughening attributed to defoaming, realizes a soft touch, exhibits a low compression set and is excellent in mechanical strength (particularly tear strength) and heat resistance.
    Type: Grant
    Filed: June 5, 2003
    Date of Patent: March 13, 2007
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Takanori Sueda, Naoto Yasaka, Chong-Sun Yoo, Jeong-Sik Yoon, Kyung-Man Choi, Kwon-Ik Lee
  • Publication number: 20070054409
    Abstract: A urea concentration identification device comprising a concentration identification sensor unit (2) and a support unit (4) attached at the bottom end thereof with this sensor unit and provided at the top end thereof with a mounting unit (4a) to a urea solution tank opening. The concentration identification sensor unit (2) has an indirectly-heated concentration detector and liquid temperature detector provided with metal fins (21c),(22c), respectively, for heat-exchanging with urea solution. The concentration identification sensor unit (2) is provided with a cover member (2d) that forms an opposite-ends-opened urea solution induction passage so as to surround the metal fins (21c), (22c).
    Type: Application
    Filed: September 10, 2004
    Publication date: March 8, 2007
    Applicant: MITSUI MINING & SMELTING CO., LTD.
    Inventors: Shinichi Inoue, Akiko Kubota, Takayuki Takahata
  • Publication number: 20070054084
    Abstract: An optical recording medium wherein the percentage change (|[a2?a1]/a1|×100) of the recording layer thickness (a2) at the recorded site of recording layer (A) after recorded with laser light compared with the recording layer thickness (a1) at unrecorded site of said recording layer (A) is less than 25% and the amount of change (|a2?a1|) of the recording layer thickness (a2) at recorded site of said recording layer (A) after recorded with laser light compared with the recording layer thickness (a1) at unrecorded site of said recording layer (A) is controlled to be less than 15 nm. The optical recording medium can enable recording and playback with high quality using laser of 300 nm to 900 nm. Also provided is a compound comprising a six-membered ring structure composed of four carbon atoms and two nitrogen atoms and a bonded substituted or unsubstituted amino group.
    Type: Application
    Filed: October 8, 2004
    Publication date: March 8, 2007
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Hiroyoshi Shiozaki, Masataka Miyasato, Tsutomu Ishida, Akira Ogiso, Keiji Ueno, Hideo Usui
  • Patent number: 7186788
    Abstract: A coating resin that is thermoplastic, exhibits good appearance, solvent resistance and adherence and is excellent in abrasion resistance; and a coting liquid or coating film thereof. In particular, a (meth)acrylic copolymer resin (A) produced by radical polymerization of 4 to 50 mass % of (meth)acrylic acid (a-1), 0.5 to 17 mass % of (meth)acrylamide (a-2), and 35 to 95.5 mass % of a compound having reactive unsaturated bond other than the compounds (a-1) and (a-2). With respect to the coating film produced therefrom, both the glass transition temperature Tg1 measured by means of a rigid-body pendulum type viscoelasticity measuring instrument and the glass transition temperature Tg2 measured by means of a differential scanning calorimeter (DSC) are 110° C. or higher. The coating film is an abrasion resistant film whose abrasion resistance measured in accordance with the Taber abrasion testing method is 80 rotations or greater.
    Type: Grant
    Filed: July 28, 2003
    Date of Patent: March 6, 2007
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Yugo Hasegawa, Tsukasa Murakami, Keiichi Asami
  • Patent number: 7183020
    Abstract: A battery separator of the invention is obtained by press forming a meltblown nonwoven fabric comprising 4-methyl-1-pentene polymer or a 4-methyl-1-pentene/?-olefin copolymer, the battery separator having an average fiber diameter of 0.8 to 5 ?m, a basis weight of 9 to 30 g/m2, a porosity of 30 to 60%, and a load at 5% elongation in the MD direction (longitudinal direction) of not less than 1.2 (kg/5 cm width). A lithium ion secondary battery of the invention includes the battery separator.
    Type: Grant
    Filed: August 12, 2005
    Date of Patent: February 27, 2007
    Assignees: Mitsui Chemicals, Inc., Denso Corporation
    Inventors: Yasuhiro Sudou, Hironori Suzuki, Satoru Nagami, Kazuo Ikuta, Takahiko Yamamoto, Shun Okijima, Satoru Suzuki, Hiroshi Ueshima
  • Patent number: 7182392
    Abstract: This latch device for an access panel door includes an open lever and a ratchet release lever pivotally mounted on a base plate by a first shaft, a lock lever pivotally mounted on the base plate by a second shaft, and a sliding pin displaceable between an engaged position and a disengaged potion. The release lever has first and second arms extending in a radial direction of the first shaft and connected to latch units. The lock lever shifts the sliding pin to an engaged position when the lock lever is in the unlocked position and shifts the sliding pin to a disengaged position when the lock lever is in the locked position. The sliding pin is slidably mounted in a slot formed on the first arm or the second arm.
    Type: Grant
    Filed: February 17, 2005
    Date of Patent: February 27, 2007
    Assignee: Mitsui Mining and Smelting Co., Ltd.
    Inventor: Yukio Sawajiri
  • Publication number: 20070042011
    Abstract: A soil-fumigant-containing solid material containing not less than 60 and not more than 85 weight % of a soil fumigant, not less than 0.5 and not more than 15 weight % of gelatin, not less than 0 and not more than 10 weight % of an inorganic mineral, not less than 1 and not more than 15 weight % of polysaccharide that reacts with a divalent or higher valent metal salt to thereby cause gelation and not less than 0.5 and not more than 20 weight % of water.
    Type: Application
    Filed: November 1, 2004
    Publication date: February 22, 2007
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Noriyuki Wakaki, Shuji Ozawa
  • Patent number: 7178233
    Abstract: A process for producing a printed wiring board-forming sheet comprising a resin sheet having a through hole in the thickness direction and a metal chip inserted in the through hole. The sheet is produced by placing a resin sheet and conductive metal sheet in this order on a die base having a die hole, performing punching from the conductive metal sheet side to form a punched hole in the conductive metal sheet and to form a punched hole in the resin sheet and inserting the punched conductive metal chip in the through hole of the resin sheet whereby the front and back surfaces of the sheet can be electrically connected to each other. If the conductive metal chip is so inserted that its tip protrudes from the surface of the sheet, and if a large number of such substrates are laminated, electrical connection in the thickness direction can readily be made by virtue of the protruded conductive metal chips and a multi-layer board can be readily produced.
    Type: Grant
    Filed: December 4, 2003
    Date of Patent: February 20, 2007
    Assignees: Mitsui Mining & Smelting Co., Ltd., Suzuki Co., Ltd.
    Inventors: Toshiyuki Nakamura, Hideto Tanaka, Akira Ichiryu, Motonobu Takahashi, Masahito Ishii, Daisuke Arai
  • Patent number: 7178854
    Abstract: A door apparatus includes a door having a hole and configured to be slidable with respect to a vehicle body, a member configured to open and close the hole, a first detector configured to detect a position of the member relative to the hole to determine an openness of the hole, a second detector configured to detect a position of the door relative to the body, and a unit configured to be activated to project from one to another of the body and the door, so as to abut on the another such that the door is stopped from sliding in an opening direction, when the openness is greater than a threshold, and the position is between a full-closed position and a midway position.
    Type: Grant
    Filed: April 4, 2006
    Date of Patent: February 20, 2007
    Assignee: Mitsui Mining & Smelting Co., Ltd.
    Inventors: Mikio Ichinose, Fumihiro Yoneyama
  • Publication number: 20070037896
    Abstract: The invention provides a cation polymerizable resin composition excellent in curing properties and corrosion resistance with less resin coloration and less cure shrinkage, which is a material suitable as a surface protective material for optical disk.
    Type: Application
    Filed: April 16, 2004
    Publication date: February 15, 2007
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Yuichi Ito, Satoru Suda, Yasushi Mizuta, Katsunori Nishiura, Toshikazu Gomi
  • Patent number: 7176269
    Abstract: The curable composition of the present invention contains (A1) a silyl-containing ethylene/?-olefin/non-conjugated polyene random copolymer rubber which has a structural unit derived from a norbornene compound as the non-conjugated polyene with at least one specific vinyl group at the terminal and contains a specific hydrolyzable silyl group, and (B) a compound, other than the rubber (A1), having a hydroxyl group and/or a hydrolyzable group, e.g., (B1) a compound having a silanol group and/or a compound which can react with moisture to form a compound having a silanol group in the molecule. This compound improves elongation of the cured product and residual surface tackiness, and, at the same time, is high in curing speed and capable of giving the cured product of high resistance to weather. It is suitable for, e.g., adhesives, tackifiers, paints, sealants, waterproof materials, spray materials, shaping materials and casting rubber materials.
    Type: Grant
    Filed: July 24, 2001
    Date of Patent: February 13, 2007
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Takashi Hakuta, Masaaki Kawasaki, Yoshiharu Kikuchi, Mitsunao Arino, Mitsuko Nagai, Hiroaki Sakaguchi, Masaki Sugawara, Masao Kishi, Kaoru Ueno, Takashi Abe, Michio Sekine
  • Publication number: 20070032601
    Abstract: The present invention relates to a polyethylene-based stretched film having excellent Elmendorf tear strength and uniform stretchability. The invention relates to a polyethylene-based stretched film which is obtained by stretching a polyethylene-based resin, wherein (A-i) Em and Et, which represent the values of Elmendorf tear strength in the MD and TD directions, respectively, as measured in accordance with ASTM D1922, satisfy the following formulas 1, 2 and 3: 20?Em[N/m]?3000??(Formula 1) 20?Et[N/m]?3000??(Formula 2) 0.1?(Em/Et)?3??(Formula 3); (a-ii) the tensile initial modulus TM in the MD direction satisfies the following formula 4: 300?TM[MPa]?10000??(Formula 4); and (a-iii) the thickness is in the range of 5 to 150 ?m, and is excellent in the stretch uniformity.
    Type: Application
    Filed: September 17, 2004
    Publication date: February 8, 2007
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Tsutomu Tasaki, Toshihiro Nishimura, Hiroshi Inoue
  • Patent number: 7173322
    Abstract: The present invention provides a COF flexible printed wiring board whose insulating layer is not melt-adhered to a heating tool, to thereby enhance reliability and productivity of a semiconductor chip mounting line, and also provides a method of producing the COF flexible printed wiring board. The COF flexible printed wiring board contains an insulating layer, a wiring pattern, on which a semiconductor chip being mounted, formed of a conductor layer provided on at least one side of the insulating layer and a releasing layer, wherein the releasing layer is formed from a releasing agent containing at least one species selected from a silane compound and silica sol and is provided on a surface of the insulating layer, which is opposite to the mounting side of the semiconductor chip.
    Type: Grant
    Filed: March 12, 2003
    Date of Patent: February 6, 2007
    Assignee: Mitsui Mining & Smelting Co., Ltd.
    Inventors: Ken Sakata, Katsuhiko Hayashi
  • Patent number: 7171832
    Abstract: A door lock device has a lock mechanism configured to allow and not allow opening of a door in an unlocked state and a locked state respectively, and an input shaft configured to switch the lock mechanism between these states when a force is applied to the input shaft. An output shaft is to be engaged with the input shaft so as to transmit the force to the input shaft. The door lock device also has a positioning mechanism configured to hold the input shaft at a position until the output shaft has been engaged with the input shaft and to allow rotation of the input shaft when the engagement has been completed.
    Type: Grant
    Filed: April 21, 2004
    Date of Patent: February 6, 2007
    Assignee: Mitsui Mining & Smelting Co., Ltd.
    Inventor: Masaaki Umino
  • Publication number: 20070027154
    Abstract: An object of the present invention is to provide insecticides having high effectiveness.
    Type: Application
    Filed: August 23, 2004
    Publication date: February 1, 2007
    Applicant: MITSUI CHEMICALS., INC.
    Inventors: Kei Yoshida, Takeo Wakita, Hiroyuki Katsuta, Akiyoshi Kai, Yutaka Chiba, Kiyoshi Takahashi, Hiroko Kato, Nobuyuki Kawahara, Michikazu Nomura, Hidenori Daido, Junji Maki, Shinichi Banba, Atsuko Kawahara
  • Publication number: 20070026620
    Abstract: A method of fabricating a semiconductor device having high output power and excellent long-term reliability by preventing thermal adverse influence exerted at the time of window structure formation is provided. The method comprises a 1st step of forming predetermined semiconductor layers 2 to 9 containing at least an active layer 4b consisting of a quantum well active layer on a semiconductor substrate 1; a 2nd step of forming a first dielectric film 10 on a first portion of the surface of the semiconductor layers 2 to 9; a 3rd step of forming a second dielectric film 12 made of the same material as that of the first dielectric film 10 and having a density lower than that of the first dielectric film 10 on a second portion of the surface of the semiconductor layers 2 to 9; and a 4th step of heat-treating a multilayer body containing the semiconductor layers 2 to 9, the first dielectric film 10, and the second dielectric film 12 to disorder the quantum well layer below the second dielectric film 12.
    Type: Application
    Filed: June 15, 2006
    Publication date: February 1, 2007
    Applicants: The Furukawa Electric Co, Ltd., Mitsui Chemicals, Inc.
    Inventor: Yumi Yamada
  • Patent number: 7168300
    Abstract: The types of gasolines having different distillation characteristics and various compositions are identified accurately and rapidly. A pulse voltage is applied for a predetermined time to a liquid type identifying sensor heater including a heater and an identifying liquid temperature sensor provided in the vicinity of the heater and an identified gasoline is heated by the heater and the liquid type is identified with a voltage output difference V0 corresponding to a temperature difference between an initial temperature and a peak temperature in the identifying liquid temperature asensor. Furthermore, a gasoline is introduced between electrodes of an alcohol concentration detecting sensor, and a change in a specific inductive capacity of the gasoline between the electrodes is measured with an oscillation frequency thereby detecting an alcohol concentration in the gasoline.
    Type: Grant
    Filed: September 30, 2003
    Date of Patent: January 30, 2007
    Assignee: Mitsui Mining & Smelting Co., Ltd.
    Inventors: Toshiaki Kawanishi, Kiyoshi Yamagishi, Takayuki Takahata
  • Publication number: 20070022030
    Abstract: A control method, for a transaction management server of a transaction administrator administrating commodity transactions between a seller and a buyer, comprises transmitting to a forwarder terminal an instruction to transport a commodity received along with price information of the commodity from a seller terminal; writing the price information into a database; receiving from the forwarder terminal and writing into the database the number of the waybill issued when the commodity is loaded into transportation by the forwarder; transmitting to the seller terminal information indicating that the transaction administrator has made an alternative payment for the commodity; receiving from the forwarder terminal and writing into the database the number of the waybill put on the commodity having arrived at a destination and commodity identification information; receiving the commodity identification information of the commodity delivered to the buyer from the forwarder terminal, and transmitting to a buyer terminal
    Type: Application
    Filed: September 8, 2005
    Publication date: January 25, 2007
    Applicant: Mitsui-Soko Co., Ltd.
    Inventors: Kei Fujioka, Hiroki Natori
  • Publication number: 20070021022
    Abstract: The invention provides a nonwoven fabric of crimped conjugate fibers comprising (1) a first propylene-based polymer component and (2) a second propylene-based polymer component, and a laminate of the nonwoven fabric and other nonwoven fabrics or porous films, in which the melting point of the component (1) is higher by at least 20° C. than that of the component (2) a ratio of the two components in melt flow rate (component (2)/component (1)) is in the range of 0.8 to 1.2, and the component ratio expressed by (1)/(2) (by weight) is 50/50 to 5/95. The nonwoven fabric has an excellent bulkiness and softness, is excellent in terms of spinnability and fuzzing resistance, and can be spun by a conventional melt spinning. The laminate has further improved water impermeability and surface smoothness. The nonwoven fabric and the laminate using the same may both be used for disposable diapers or sanitary napkins.
    Type: Application
    Filed: April 5, 2006
    Publication date: January 25, 2007
    Applicant: Mitsui Chemicals, Inc.
    Inventors: Masahiro Kishine, Kunihiko Takesue, Hisashi Morimoto