Patents Assigned to Agency of Industrial Science
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Patent number: 6901074Abstract: A real-time communications system for decentralized management is accomplished which was not implemented conventionally. To achieve this, the following techniques are employed: (1) Overtaking of communication packets based on priority; (2) Path control based on the priority; and (3) Priority change at each node. When carrying out real-time communication between a plurality of information processors, each communication node (information processor) carries out overtaking of the communication packets in accordance with the priority. In the course of this, each communication node can change the priority, and establish different paths for each of the priority.Type: GrantFiled: December 1, 1999Date of Patent: May 31, 2005Assignees: Secretary of Agency of Industrial Science and TechnologyInventor: Nobuyuki Yamasaki
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Patent number: 6877549Abstract: A heat storage device comprises a heat storage tank 2 charged with a heat storage material 1 for storing the heat supplied from the outside, and a heat exchanger 3 for executing an injection and an extraction of heat between the inside of the storage tank 2 and the outside by the heat exchange between the heat storage material and a heat transfer medium. The heat exchanger 3 is disposed so as to execute a heat exchange between the central portion 2a in the heat storage tank 2 and the outside, and suppresses the natural convection of the heat storage material 1 of the outer portion 2b by, for example, dispersing a liquid-absorbent material 5 in the outer portion 2b surrounding the central portion in the heat storage tank 2, whereby reduces the influence of external environment on the central portion 2a in the heat storage tank, thereby suppressing the heat loss toward the outside.Type: GrantFiled: November 29, 2001Date of Patent: April 12, 2005Assignee: Agency of Industrial Science and TechnologyInventor: Satoshi Hirano
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Patent number: 6879388Abstract: An optical apparatus has an adjustment apparatus 5 and an optical unit 1 including a plurality of optical elements. The adjustment apparatus sequentially provides control signals that, according to a probabilistic search technique, change the parameters of a stipulated plurality of optical elements among the optical elements to become parameters that cause the functions of the optical apparatus to satisfy stipulated specifications. A method of adjusting the optical apparatus includes sequentially providing control signals that, according to a probabilistic search technique, change the parameters of the stipulated plurality of optical elements among the optical elements, and searching for optical values at which the functions of the optical apparatus the stipulated specification.Type: GrantFiled: June 14, 2004Date of Patent: April 12, 2005Assignees: Agency of Industrial Science & Technology, Ministry of International Trade & Industry, Evolvable System Research Institute, Inc.Inventors: Yuji Kasai, Masahiro Murakawa, Taro Itatani, Tetsuya Higuchi
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Patent number: 6870605Abstract: A laser tracking interferometric length measuring instrument has a laser source and a tracking articulating optical lever provided on an optical path of an interferometric optical system. To track a retroreflector, the optical lever reflects a laser beam at the retroreflector, which reflects the beam back to the optical lever. This beam is reflected onto a quadrant photodiode. An attitude control means is used to control the attitude of the optical lever so that the laser beam reflected by the optical lever falls on the neutral point of the photodiode.Type: GrantFiled: March 19, 2003Date of Patent: March 22, 2005Assignee: Agency of Industrial Science and Technology, Ministry of International Trade and IndustryInventors: Sonko Osawa, Toshiyuki Takatsuji, Tomizo Kurosawa, Hironori Noguchi, Jiang Hong
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Patent number: 6858428Abstract: The present invention provides low serum or serum free liquid culture media for human or animal cells, and the present invention relates to culture media containing antithrombin III and optionally heparin for the low-serum or serum-free culture of human or animal cells to suppress cell death. The antithrombin III is purified from human, bovine, or other animal serum, or antithrombin III derived from recombinant bacteria or cells containing the full length of the antithrombin III gene.Type: GrantFiled: August 8, 2002Date of Patent: February 22, 2005Assignee: Agency of Industrial Science and TechnologyInventors: Takao Saito, Sumio Maeda, Hidetoshi Inagaki
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Patent number: 6858694Abstract: A stimuli-responsive polymer derivative utilizing keto-enol tautomerization. Also disclosed are a simple process for producing an N-acyl(meth)acrylamide derivative which can be used as a monomer for the stimuli-responsive polymer, a process for the production of an intermediate thereof, and an intermediate thus produced.Type: GrantFiled: June 18, 2004Date of Patent: February 22, 2005Assignees: Agency of Industrial Science and Technology MITI, Japan Chemical Innovation InstituteInventors: Noriyuki Ohnishi, Kazumi Aoshima, Kazunori Kataoka, Katsuhiko Ueno
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Patent number: 6852819Abstract: A stimuli-responsive polymer derivative utilizing keto-enol tautomerization. Also disclosed are a simple process for producing an N-acyl(meth)acrylamide derivative which can be used as a monomer for the stimuli-responsive polymer, a process for the production of an intermediate thereof, and an intermediate thus produced.Type: GrantFiled: June 25, 2002Date of Patent: February 8, 2005Assignees: Agency of Industrial Science & Technology MITI, Japan Chemical Innovation InstituteInventors: Noriyuki Ohnishi, Kazumi Aoshima, Kazunori Kataoka, Katsuhiko Ueno
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Patent number: 6827634Abstract: A ultra fine particle film forming apparatus is provided which is capable of forming a ultra fine particle film which has ultra fine particles sufficiently bonded together, sufficient density, flat surface and uniform density. A planarized ultra fine particle film forming method for forming a planarized ultra fine particle film from a deposited film of ultra fine particles formed by supplying the ultra fine particles to a substrate, the method comprising one or more of a planarizing step of planarizing a surface of the deposited film of the ultra fine particles supplied to the substrate.Type: GrantFiled: December 29, 2000Date of Patent: December 7, 2004Assignee: Agency of Industrial Science and TechnologyInventor: Jun Akedo
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Patent number: 6821107Abstract: Multiple cell layers are formed with one cell layer formed on another cell layer. A carrier is provided having an alginate gel layer formed on a porous membrane. An extracellular matrix component gel layer or extracellular matrix component sponge layer may be formed on the alginate gel layer. A cell layer is formed on the alginate gel layer, or the extracellular matrix component gel layer or extracellular matrix component sponge layer. The alginate gel layer is solubilized such as with a chelating agent to exfoliate the cell layer from the porous membrane, and the exfoliated cell layer is placed on another cell layer on a carrier. The number of cell layers formed on each other may be 1-10, preferably 1-5, and more preferably 1-3.Type: GrantFiled: October 27, 2000Date of Patent: November 23, 2004Assignee: Secretary of Agency of Industrial Science and TechnologyInventors: Masayuki Hara, Jun Miyake, Ayako Yamaki
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Patent number: 6819648Abstract: An optical sample includes a mask layer made of a material in which an aperture is produced by a chemical change, which is reversible, upon application of heat or light, and a recording layer provided at a position where an evanescent field produced in the aperture when light is applied to the mask layer can reach. Since the aperture is produced in the mask layer by a chemical change, it can be opened and closed at a high speed and hence a high-speed transfer of information can be achieved.Type: GrantFiled: June 2, 2000Date of Patent: November 16, 2004Assignees: Agency of Industrial Science and Technology, Sharp Kabushiki KaishaInventors: Junji Tominaga, Nobufumi Atoda, Hiroshi Fuji, Hiroyuki Katayama, Kenji Ohta
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Patent number: 6815721Abstract: A diamond semiconductor has an exciton light-emission intensity characteristic that varies nonlinearly.Type: GrantFiled: March 8, 2004Date of Patent: November 9, 2004Assignee: Agency of Industrial Science & Technology, Ministry of International Trade & IndustryInventors: Hideyo Okushi, Hideyuki Watanabe, Daisuke Takeuchi, Koji Kajimura
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Patent number: 6805793Abstract: A novel method for separating a target substance, for example, metal ion, drug or biological component is provided. According to the method, the surface of a packing undergoes a chemical or physical environmental change under a physical stimulus so that the interaction of a substance interacting with the target substance is reversibly changed in an aqueous solution, thus effecting separation.Type: GrantFiled: May 9, 2003Date of Patent: October 19, 2004Assignees: Japan Chemical Innovation Institute, The Agency of Industrial Science and Technology of the Ministry of International Trade and IndustryInventors: Kimihiro Yoshizako, Yoshikatsu Akiyama, Katsuhiko Ueno, Teruo Okano
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Patent number: 6803943Abstract: A marine plant field survey method includes the step of using a submarine mobile video system capable of taking images underwater to measure degree of macrophyte coverage in a marine plant field by taking wide-field images of macrophytes from above and a step of using the submarine mobile video system to discriminate species of macrophytes by taking images of macrophytes from a direction other than from above. A marine plant survey system includes a camera for taking wide-field images of macrophytes from above and a camera for taking images of macrophytes from a direction other than from above.Type: GrantFiled: December 5, 2000Date of Patent: October 12, 2004Assignee: Agency of Industrial Science & Technology, Ministry of International Trade & IndustryInventor: Masumi Yamamuro
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Patent number: 6798306Abstract: A high-frequency oscillation circuit incorporates a crystal resonator having a natural oscillation frequency in a high-frequency area within a closed circuit including one or more logic elements. Therefore, this circuit copes with an oscillation frequency of 1 MHz to 2 GHz or more in basic oscillation frequency of a crystal resonator and it oscillates with stability at the basic oscillation frequency of the crystal resonator.Type: GrantFiled: December 20, 2000Date of Patent: September 28, 2004Assignee: Secretary of Agency of Industrial Science and TechnologyInventor: Shigeru Kurosawa
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Patent number: 6787617Abstract: A process for preparing olefinic living polymers having a molecular weight distribution (Mw/Mn) of 1 to 1.3, comprising polymerizing an olefinic monomer having 2 to 20 carbon atoms at low temperatures in the presence of a catalyst comprising (A) a hafnium or zirconium-containing compound having one or two cyclopentadienyl backbones, (B) a triphenyl boron compound or a tetraphenyl borate compound and optionally (C) a specific mono-, di- or trialkylaluminum compound. When the catalyst comprising the zirconium-containing compound is prepared by further using a titanium-containing compound (D), the polymerization temperature can be raised.Type: GrantFiled: November 8, 2001Date of Patent: September 7, 2004Assignees: Japan as represented by Director General of the Agency of Industrial Science and Technology, Japan Chemical Innovation InstituteInventors: Kazuo Soga, Takeshi Shiono, Michihiko Asai, Yasuzo Suzuki, Akira Miyazawa, Kenji Tsuchihara, Masahide Murata, Hiroyuki Ozaki, Masanao Kawabe, Toshio Kase, Jizhu Jin, Hideaki Hagiwara, Yoshifumi Fukui
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Patent number: 6781682Abstract: An optical apparatus has an adjustment apparatus 5 and an optical unit 1 including a plurality of optical elements. The adjustment apparatus sequentially provides control signals that, according to a probabilistic search technique, change the parameters of a stipulated plurality of optical elements among the optical elements to become parameters that cause the functions of the optical apparatus to satisfy stipulated specifications. A method of adjusting the optical apparatus includes sequentially providing control signals that, according to a probabilistic search technique, change the parameters of the stipulated plurality of optical elements among the optical elements, and searching for optical values at which the functions of the optical apparatus the stipulated specification.Type: GrantFiled: March 28, 2000Date of Patent: August 24, 2004Assignees: Agency of Industrial Science and Technology, Ministry of International Trade & Industry, Evolvable System Research Institute, Inc.Inventors: Yuji Kasai, Masahiro Murakawa, Taro Itatani, Tetsuya Higuchi
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Patent number: 6776918Abstract: The invention provides a titanium composite material comprising a bonded laminate having a layer of macromolecular material bonded to the modified surface of a titanium sheet or a titanium alloy sheet, and a process for preparing a titanium composite material, the process comprising the step of bonding a macromolecular material to a titanium sheet or a titanium alloy sheet having a modified surface to be bonded.Type: GrantFiled: December 8, 2000Date of Patent: August 17, 2004Assignees: Showa Co., Ltd., Japan as represented by Secretary of Agency of Industrial Science and TechnologyInventors: Susumu Yoshikawa, Yuko Tanaka, Teruki Takayasu, Hiromasa Ogawa, Kinji Onoda, Masatada Makino, Takashi Nishiyama
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Patent number: 6773528Abstract: A process produces a fiber-reinforced silicon carbide composite. The resulting composite has a high toughness where bundles of a reinforcing fiber are densely covered with glassy carbon derived from a resin to avoid deterioration of the strength, and it can easily be produced even in complicated shapes. Specifically, a fiber-reinforced silicon carbide composite is produced by preparing a fiber prepreg containing a powdered silicon and a resin and molding the prepreg to yield a green body having a desired shape, or laminating a fiber prepreg containing a resin and a woven fabric prepreg containing a powdered silicon and a resin in alternate order, and molding the laminate to yield a green body having a desired shape; carbonizing the green body at 900° C. to 1350° C. in an inert atmosphere; impregnating the carbonized body with a resin; firing the impregnated body again at 900° C. to 1350° C.Type: GrantFiled: December 19, 2002Date of Patent: August 10, 2004Assignee: Agency of Industrial Science and TechnologyInventor: Eiji Tani
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Patent number: 6774262Abstract: The invention provides a method of increasing the reaction rate of an organic synthesis reaction by utilizing supply of OH− from water in the absence of catalyst without adding a basic catalyst in supercritical water or subcritical water of at least 350 ° C., and a method of generating alcohol and carboxylic acid with high reaction rate by performing a Cannizzaro reaction in the absence of catalyst without adding a basic catalyst in supercritical water, and to a method of synthesis of alcohol and carboxylic acid from an aldehyde in the absence of catalyst without adding a basic catalyst near the critical point (375 to 380 ° C., 22.5 to 25 MPa) of supercritical water.Type: GrantFiled: September 11, 2000Date of Patent: August 10, 2004Assignee: Japan as represented by Secretary of Agency of Industrial Science and TechnologyInventors: Yutaka Ikushima, Osamu Sato, Kiyotaka Hatakeda
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Patent number: 6772823Abstract: A heat storage device comprises a heat storage tank 2 charged with a heat storage material 1 for storing the heat supplied from the outside, and a heat exchanger 3 for executing an injection and an extraction of heat between the inside of the storage tank 2 and the outside by the heat exchange between the heat storage material and a heat transfer medium. The heat exchanger 3 is disposed so as to execute a heat exchange between the central portion 2a in the heat storage tank 2 and the outside, and suppresses the natural convection of the heat storage material 1 of the outer portion 2b by, for example, dispersing a liquid-absorbent material 5 in the outer portion 2b surrounding the central portion in the heat storage tank 2, whereby reduces the influence of external environment on the central portion 2a in the heat storage tank, thereby suppressing the heat loss toward the outside.Type: GrantFiled: February 21, 2002Date of Patent: August 10, 2004Assignee: Agency of Industrial Science and TechnologyInventor: Satoshi Hirano