Patents Assigned to Mitsui
  • Patent number: 6150438
    Abstract: The invention provides a composite resin composition comprising aliphatic polyester resin (component A) having aliphatic hydroxycarboxylic acid units, one or more biomass material (component B) selected from the group consisting of cellulose, lignocellulose and starch and unsaturated carboxylic acid or a derivative thereof (component C), wherein the composite resin composition comprises a component obtained by covalently bonding a portion or the whole of component A and component B through component C. On processing into various formed items, the composite resin composition of the invention exhibits excellent tensile strength and other physical properties and processability and simultaneously has good biodegradability, and enable biomass materials of low added value to apply to high added value uses in a large amount.
    Type: Grant
    Filed: March 30, 2000
    Date of Patent: November 21, 2000
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Nobuo Shiraishi, Masanobu Ajioka
  • Patent number: 6149588
    Abstract: Near infrared rays of .lambda.1, .lambda.2, .lambda.3 in wavelength which are different from and near to one another are irradiated from a light source (2) to a part being measured (F) of a living body in such a state that vein bloodstream at the part being measured is stopped by applying a press force of a cuff (8), and the intensities of the transmitted near infrared rays of .lambda., .lambda.2, .lambda.3 in wavelength are detected by a photodetector (4) at the same time. In a processing circuit (14), the absorbance secondary differential value of the near infrared rays by the part being measured (F) is calculated on the basis of the transmitted light intensity detection values thus detected at the same time with respect to the three wavelengths, the variation width thereof within a predetermined time is calculated and then the blood sugar value in the living body is determined from the absorbance secondary differential value variation width on the basis of a calibration curve.
    Type: Grant
    Filed: May 19, 1999
    Date of Patent: November 21, 2000
    Assignees: Mitsui Mining & Smelting Co., Ltd., Mitsui & Co., Ltd.
    Inventors: Mitsuhiko Noda, Mikio Kimura
  • Patent number: 6149992
    Abstract: The present invention makes it possible to provide a pellicle having, on the inside of the pellicle frame, a tacky layer which exhibits excellent performance for holding foreign matters such as dust or dirt suspended in space defined by the pellicle and the mask, and resistance against light of short wavelengths such as excimer beam. The pellicle comprises a pellicle frame, a pellicle film stretched on one side of said pellicle frame, and a tacky layer formed on the inside of said pellicle frame and containing a greasy fluorine-contained resin.
    Type: Grant
    Filed: October 19, 1998
    Date of Patent: November 21, 2000
    Assignee: Mitsui Chemicals, Inc.
    Inventor: Norio Nakayama
  • Patent number: 6146739
    Abstract: A glass run channel comprising a glass run channel body composed of a bottom wall and side walls extending from two opposite edges of the bottom wall, the glass run channel body having a substantially U-shaped section and provided with a groove, and tonguelike draining parts protruding from vicinities of distal edges of the side walls toward the bottom wall of the glass run channel body so as to become proximate to each other. Each of the tonguelike draining parts has a window glass contact part composed of a surface to be brought into contact with a window glass, which comprises a layer of a thermoplastic elastomer and a layer of an ultrahigh molecular weight polyolefin composition. The layer of ultrahigh molecular weight polyolefin composition is arranged so as to contact a window glass. The ultrahigh molecular weight polyolefin composition comprises at least a polyolefin (composition) having a specified intrinsic viscosity and an olefinic thermoplastic elastomer.
    Type: Grant
    Filed: February 20, 1998
    Date of Patent: November 14, 2000
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Yuichi Itoh, Masato Karaiwa, Kyoko Kobayashi, Akira Uchiyama
  • Patent number: 6147439
    Abstract: A piezoelectric substrate supporting structure for piezoelectric transformer is provided which, in the supporting and fixing of a piezoelectric substrate on a base plate or in an outer trim case, does not inhibit the vibration of the piezoelectric substrate, exhibits high impact resistance and enables stable supporting, is free from performance deterioration and enables simultaneously and easily performing an electrode takeoff from the piezoelectric substrate. Further, a piezoelectric transformer including the above piezoelectric substrate supporting structure is provided.
    Type: Grant
    Filed: June 23, 1998
    Date of Patent: November 14, 2000
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Shusaku Takagi, Masamitsu Tanaka, Sigeru Bando, Tadao Sunahara, Katsuo Kono, Mitsunobu Yoshida, Yasushi Iwata
  • Patent number: 6143433
    Abstract: In a first aspect, an organic electroluminescent device having an electroluminescent layer and/or a charge injecting/transporting layer formed out of a thin film of organic polymers of network structure which are excellent in heat resistance and durability, e.g., polyoxadiazoles is obtained by conducting a vapor deposition polymerization of a bifunctional monomer, a polyfunctional monomer of 3 or higher in functionality or a mixture of the polyfunctional monomer and bifunctional monomer and heating the resultant polymer in vacuum or an inert gas.
    Type: Grant
    Filed: September 11, 1995
    Date of Patent: November 7, 2000
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Hideyuki Murata, Hideki Hirano
  • Patent number: 6143925
    Abstract: A process for producing aromatic carboxylic acids efficiently by operating a distillation column for separating the vaporized reaction solvent and other useful ingredients from an oxidation reactor while permitting efficient energy recovery without causing any obstruction to turbine and without causing any clogging of the distillation column, said process comprising oxidizing an alkyl aromatic compound in a liquid reaction solvent comprising an aliphatic carboxylic acid with a molecular oxygen-containing gas in the presence of an oxidation catalyst in the said oxidation reactor to form an aromatic carboxylic acid, guiding the oxidation reactor exhaust gas into the distillation column to subject it to a distillation, passing the distilltion overhead gas to a condenser to form a condensate, which is returned to the distillation column, and to generate a steam on the shell side, which is guided to a steam turbine for energy recovery, and burning the condenser exit gas in order to drive a gas turbine for energy r
    Type: Grant
    Filed: June 4, 1999
    Date of Patent: November 7, 2000
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Tadashi Tomitaka, Michio Umeda, Hideaki Iwata, Fujimasa Nakao
  • Patent number: 6143827
    Abstract: Disclosed is an olefin thermoplastic elastomer composition obtained by dynamically heat treating, in the presence of an organic peroxide, a blend comprising 10 to 60 parts by weight of a crystalline polyolefin resin (A) and 40 to 90 parts by weight of an unsaturated olefin copolymer (B) of at least one .alpha.-olefin of 2 to 20 carbon atoms, a conjugated diene monomer represented by the following formula (I), and optionally, an aromatic vinyl compound, the total amount of said components (A) and (B) being 100 parts by weight; ##STR1## wherein R.sup.1 and R.sup.2 are each independently a hydrogen atom, an alkyl group of 1 to 8 carbon atoms or an aryl group, and at least one of R.sup.1 and R.sup.2 is a hydrogen atom. The composition has excellent moldability and can provide a molded product having excellent elastomeric properties, tensile strength properties and appearance.
    Type: Grant
    Filed: July 20, 1998
    Date of Patent: November 7, 2000
    Assignee: Mitsui Chemicals Inc
    Inventors: Kenichi Morizono, Keiji Okada, Masayoshi Yamaguchi
  • Patent number: 6144764
    Abstract: The invention aims at recognition of a handwritten input character on-line with quite high accuracy. The method of on-line handwritten input character recognition of the invention is characterized in that ordinary strokes and transition strokes and/or start-end (s-e) strokes of a handwritten input character sampled on-line are compared with ordinary strokes and transition strokes and/or s-e strokes of dictionary's characters previously registered in a dictionary and the character corresponding to the handwritten input character is recognized on the basis of the result of the comparison. Otherwise, when the dictionary's character most similar to the input character corresponds to a preset character, the handwritten input character is identified by using characteristic features of the corresponding character.
    Type: Grant
    Filed: January 20, 1998
    Date of Patent: November 7, 2000
    Assignee: Mitsui High-tec, Inc.
    Inventors: Takeshi Yamakawa, Toyoshi Odahara, Naohiro Inagawa
  • Patent number: 6139948
    Abstract: A membrane formed by coating an aqueous coating liquid comprising an antistatic agent or anticlouding agent on one or both surfaces of an aliphatic polyester film comprising a specific amount of a lubricant or an antiblocking agent, can remarkably improve adhesion of the membrane (antistatic layer or anticlouding layer) to the aliphatic polyester film, and thus the effect of the membrane (antistatic effect or anticlouding effect) can be continuously exhibited for a long period.
    Type: Grant
    Filed: November 24, 1998
    Date of Patent: October 31, 2000
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Naoki Kobayashi, Shuhei Ikado, Akira Kawano, Takayuki Kuroki, Hirotaka Wanibe
  • Patent number: 6140077
    Abstract: A method for producing phytase using a Candida boidinii transformant, by which phytase is secreted to liquid medium without substantially increasing the number of the transformant cells is disclosed. In this method, cells of a Candida boidinii transformant which is transformed with a recombinant vector comprising a promoter inducible with methanol and a gene located downstream of said promoter and operably linked to said promoter, which gene encodes a polypeptide having phytase activity, are cultured in a liquid culture medium containing phosphoric acid or a phosphate compound in an amount effective of restricting proliferation of said cells of Candida boidinii transformant such that the amount of said cells of Candida boidinii transformant is not substantially increased, while adding methanol to the culture medium, so as to make said cells secrete said phytase.
    Type: Grant
    Filed: January 28, 1998
    Date of Patent: October 31, 2000
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Takeshi Nakamura, Tadashi Suzuki, Junko Tokuda, Nobuo Kato, Yasuyoshi Sakai, Daisuke Mochizuki, Hitoshi Takahashi
  • Patent number: 6140458
    Abstract: The invention provides a process for producing high-molecular aliphatic polyesters capable of being substitutes for general-purpose resins that are required to have high toughness, in a simplified manner and at a high volume efficiency. Specifically, in the process, used as the starting material is an easily-available, low-molecular aliphatic polyester prepolymer to be prepared through polycondensation of inexpensive materials of an aliphatic hydroxycarboxylic acid such as lactic acid, glycolic acid or the like, an aliphatic polyalcohol such as butanediol or the like, and an aliphatic polycarboxylic acid such as succinic acid or the like, and the starting prepolymer is crystallized and thereafter polycondensed in a solid phase in the presence of a catalyst to give the intended, tough and high-molecular aliphatic polyester.
    Type: Grant
    Filed: April 27, 1999
    Date of Patent: October 31, 2000
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Yuji Terado, Hiroshi Suizu, Masatoshi Takagi, Masanobu Ajioka, Shoji Hiraoka, Masayuki Sakai, Hiroyuki Suzuki, Ryo Shinagawa, Shinji Ogawa, Yasushi Kotaki
  • Patent number: 6140001
    Abstract: The invention resides in iron oxide particles having very small particle size, high saturation magnetization and low remanent magnetization. The invention also resides in a process for producing such particles and compositions containing the particles.
    Type: Grant
    Filed: May 4, 1999
    Date of Patent: October 31, 2000
    Assignee: Mitsui Mining & Smelting Co., Ltd.
    Inventors: Makoto Miyaji, Carmine DiNitto
  • Patent number: 6140441
    Abstract: A process for preparing an ethylene/.alpha.-olefin/norbornene nonconjugated polyene random copolymer, comprising preparing an ethylene random copolymer simultaneously meeting the following requirements (1) to (5):(1) the molar ratio of ethylene (a) to an .alpha.-olefin (b) having 3 to 20 carbon atoms ranges from 40:60 to 95:5;(2) a given amount of non conjugated polyene (c) has a norbornene skeleton;(3) the available network chain density .nu. is not less than 1.5.times.10.sup.20 /cm.sup.3 after press cross-linking of the copolymer using a dicumyl peroxyde;(4) the ratio of the rate .gamma.1 of shear showing a shearing stress of 0.4.times.10.sup.6 dyn/cm.sup.2 as determined from the melt flow curve at 100.degree. C. and the rate .gamma.2 of shear showing a shearing stress of 2.4.times.10.sup.6 dyn/cm.sup.2, that is .gamma.2/.gamma.1 and the available network chain density .nu. has a relationship represented by the following general formula: 0.04.times.10.sup.-19 .ltoreq.Log(.gamma.2/.gamma.1)/.nu..ltoreq.0.20.
    Type: Grant
    Filed: March 30, 1998
    Date of Patent: October 31, 2000
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Takashi Hakuta, Mikio Hosoya, Tetsuo Tojo, Masaaki Kawasaki
  • Patent number: 6136743
    Abstract: The invention provides catalysts which have a high polymerization activity, enable the obtaining of olefin polymers of wide molecular weight distribution, and which comprise (a)(a-1) a metallocene compound or (a-2) a titanium catalyst component containing magnesium, titanium, and halogen, (b) a compound of a transition metal from Groups 8 to 10 of the periodic table and is of the general formula shown below, and a cocatalyst component. ##STR1## The invention also provides olefin polymer compositions excellent in rigidity and impact resistance which can be produced using a catalyst comprising the transition metal compound (b) and which comprises a non-crystalline olefin polymer having a specific intrinsic viscosity, glass transition temperature and density, and another known olefin polymer.
    Type: Grant
    Filed: October 7, 1998
    Date of Patent: October 24, 2000
    Assignee: Mitsui Chemicals, INC.
    Inventors: Kenji Sugimura, Kiyotaka Yorozu, Yasuhiko Suzuki, Tetsuo Hayashi, Shin-ya Matsunaga
  • Patent number: 6136879
    Abstract: A soft polyurethane foam which has a rebound resilience percentage of not higher than 30% and whose temperature dependency of a compression force deflection that is represented by a difference between a 25%-compression force deflection value at -20.degree. C. and a 25%-compression force deflection value at +20.degree. C. is not larger than 0.030 kg/cm.sup.2.
    Type: Grant
    Filed: October 23, 1998
    Date of Patent: October 24, 2000
    Assignees: Tokai Rubber Industries, Ltd., Mitsui Chemicals, Inc.
    Inventors: Kiyomi Nishida, Shuichi Takahashi, Kunio Sasaoka, Masashi Obata
  • Patent number: 6135513
    Abstract: An operational apparatus for a vehicle slide door comprises an outer open lever connected to an outside handle of the door, an inside handle of the door rotatable in door-opening and door-closing directions, an inner open lever connected to the inside handle, a child-proof mechanism, a powered closing unit for closing the door from a half-latched position to the full-latched position, a fail-safe lever for interrupting an operation of the powered closing unit, a sub inner lever connected to the inside handle. The inner open lever transmits a door-closing rotation of the inside handle to the fail-safe lever without through the child-proof mechanism. The sub inner lever transmits a door-opening rotation of the inside handle to the fail-safe lever without through the child-proof mechanism. The fail-safe lever is moved in the same direction by either of the door-opening and the door-closing rotations of the inside handle.
    Type: Grant
    Filed: September 4, 1998
    Date of Patent: October 24, 2000
    Assignee: Mitsui Kinzoku Kogyo Kabushiki Kaisha
    Inventors: Yoshikazu Hamada, Mitsuhiro Watanabe, Hirofumi Watanaba
  • Patent number: 6137581
    Abstract: The present invention relates to an internal quality measuring apparatus for measuring an internal quality of an object, and the apparatus has a conveying device, a detecting device, a light projecting device, a light receiving device, an analyzing device and a pseudo-object member interposing device, and the analyzing device compares light received with a pseudo-object member, with reference data preliminarily stored, and correct a result of the analysis, based thereon.
    Type: Grant
    Filed: April 29, 1999
    Date of Patent: October 24, 2000
    Assignee: Mitsui Mining & Smelting Co., Ltd.
    Inventors: Mikio Kimura, Toyohiko Aoki, Hirotsugu Hashimoto, Takeshi Ota, Akihiko Fujita
  • Patent number: 6136905
    Abstract: A lactic acid polymer composition comprising formulating 100 parts by weight of a mixture consisting of 80-95% by weight of an L-lactic acid polymer having an L-lactic acid proportion of 75% or more and 5-20% by weight of a plasticizer selected from the group consisting of a polyhydric alcohol ester and a hydroxypolycarboxylic acid ester, 0.1-5 parts by weight of an anti-blocking agent having a SiO.sub.2 content of 90% or more and an average particle size of 7-50 nm, and 0.1-2 parts by weight of a slip agent; a molded product and film obtained from the composition; and a preparation process of the same are disclosed. The molded product and film are excellent in processability, transparency, flexibility, anti-blocking property and slip, and can be degraded into harmless water and carbon dioxide under natural environment, when abandoned.
    Type: Grant
    Filed: December 22, 1997
    Date of Patent: October 24, 2000
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Kazuhiko Suzuki, Takayuki Watanabe, Yasuhiro Kitahara, Masanobu Ajioka, Shuhei Ikado
  • Patent number: 6132639
    Abstract: A manganese-nickel mixed hydroxide for battery active material comprising a manganese-containing mixed hydroxide having a coated layer composed of a mixed-oxide of nickel and cobalt, to provide an excellent discharging property and allows one to achieve an improvement in the discharge utilization when it is used as an electrode material for secondary batteries.
    Type: Grant
    Filed: March 3, 1999
    Date of Patent: October 17, 2000
    Assignee: Mitsui Mining & Smelting Company, Ltd.
    Inventors: Kazuhito Komatsu, Sumihiko Makizoe, Tsuneyoshi Kamada, Yasuhiro Ochi, Takashi Okito