Patents by Inventor Takashi Oka
Takashi Oka has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 7987668Abstract: A fluid pressure actuator includes an output cylinder, a fluid pressure pump, an electric motor, a first output cylinder passage, a second output cylinder passage, a return passage and a swash plate control cylinder. The output cylinder includes a first output cylinder chamber, a second output cylinder chamber and an output piston arranged between the first output cylinder chamber and the second output cylinder chamber. The fluid pressure pump includes a first supply and discharge port, a second supply and discharge port and a swash plate for changing displacement of the fluid pressure pump. The electric motor drives the fluid pressure pump. The first output cylinder passage connects the first output cylinder chamber and the first supply and discharge port. The second output cylinder passage connects the second output cylinder chamber and the second supply and discharge port.Type: GrantFiled: February 11, 2008Date of Patent: August 2, 2011Assignee: Mitsubishi Heavy Industries, Ltd.Inventors: Atsushi Kakino, Hiroshi Saito, Kenta Kawasaki, Takashi Oka
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Patent number: 7978047Abstract: A variable resistance element comprises a variable resistor of strongly-correlated material sandwiched between two metal electrodes, and the electric resistance between the metal electrodes varies when a voltage pulse is applied between the metal electrodes. Such a switching operation as the ratio of electric resistance between low and high resistance states is high can be attained by designing the metal electrodes and variable resistor appropriately based on a definite switching operation principle. Material and composition of the first electrode and variable resistor are set such that metal insulator transition takes place on the interface of the first electrode in any one of two metal electrodes and the variable resistor by applying a voltage pulse. Two-phase coexisting phase of metal and insulator phases can be formed in the vicinity of the interface between the variable resistor and first electrode by the work function difference between the first electrode and variable resistor.Type: GrantFiled: August 8, 2006Date of Patent: July 12, 2011Assignees: Sharp Kabushiki Kaisha, National Science and TechnologyInventors: Yasunari Hosoi, Shigeo Ohnishi, Yasushi Ogimoto, Takashi Oka, Naoto Nagaosa, Yoshinori Tokura
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Publication number: 20110165323Abstract: A production method of dry water containing an aqueous ingredient coated with a hydrophobic powder to form a powder state capable of liquefying upon embrocation at the time of use, wherein the dry water is produced by charging a hydrophobic powder and an aqueous ingredient into a hollow container forming a hydrophobic enclosed space in the inside thereof, followed by agitating at a high speed in the enclosed hydrophobic hollow container to form the aqueous ingredient to fine aqueous droplets, and then allowing the surfaces of the fine aqueous droplets to be uniformly adsorbed with the hydrophobic powder, whereby the dry water in the form of a powder state, but is capable of being liquefied upon embrocation at the time of use to be simply produced in a large scale.Type: ApplicationFiled: November 22, 2010Publication date: July 7, 2011Inventors: Takashi Oka, Nobuyoshi Koga, Emiko Takasu, Toshio Yanaki
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Publication number: 20110129429Abstract: When a poorly water-soluble ultraviolet ray absorber is used, it is difficult to solubilize a sufficient amount of the poorly water-soluble ultraviolet ray absorber by using a surfactant such as a polyoxyethylene alkyl ether or a polyoxyethylene hydrogenated castor oil. Thus, an object aims to provide a water-containing composition in which a poorly water-soluble ultraviolet ray absorber is solubilized or dispersed in water. Another object aims to dissolve a poorly water-soluble ultraviolet ray absorber in water and allow the poorly water-soluble ultraviolet ray absorber to co-exist with a water-soluble component such as a water-soluble medicinal agent and a water-soluble dye in the water to thereby stabilize the water-soluble component.Type: ApplicationFiled: July 1, 2009Publication date: June 2, 2011Applicant: SHISEIDO COMPANY, LTD.Inventors: Takashi Teshigawara, Reiji Miyahara, Masatoshi Ochiai, Takashi Oka
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Patent number: 7944316Abstract: A multi-phase oscillator includes a plurality of ring oscillators (21) each having a plurality of output ports and each formed by connecting an odd number of inverters (20) in a ring, and a plurality of resistance elements (30) coupling the output ports between the plurality of ring oscillators (21) so that all of the plurality of ring oscillators (21) operate at an identical frequency while keeping a desired phase relationship. The number of the ring oscillators (21) is not limited to an odd number but may be an even number. The multi-phase oscillator changes the state of a succeeding node of a phase coupling to accord with the state of a preceding node of the phase coupling by using the resistance elements (30) as phase coupling devices. If resistors are used as the resistance elements (30), the phase output accuracy greatly improves and high frequency oscillation is possible.Type: GrantFiled: November 30, 2006Date of Patent: May 17, 2011Assignee: Panasonic CorporationInventors: Seiji Watanabe, Takashi Oka, Tetsuo Arakawa
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Patent number: 7943596Abstract: The present invention provides an ophthalmic pharmaceutical composition containing acetylated hyaluronic acid and a pharmacologically acceptable carrier. Preferably, the average molecular weight of the acetylated hyaluronic acid is 10,000 to 1,000,000, and the acetyl group substitution number is from 2.0 to 4.0. In a preferred embodiment, this ophthalmic pharmaceutical composition is used in the treatment or prevention of dry eye, and in an even more preferred embodiment it is a dry-eye instillation.Type: GrantFiled: May 8, 2008Date of Patent: May 17, 2011Assignee: Shiseido Company, Ltd.Inventors: Norio Ueno, Takashi Oka
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Publication number: 20110044928Abstract: The present invention provides a film composition effective for correcting irregularities on the skin surface, which has stretchability and flexibility as a result of crosslinkable protein microparticles in the film composition being crosslinked by transglutaminase, as well as superior air permeability and moisture evaporation properties as a result of forming a film with the crosslinkable protein microparticles.Type: ApplicationFiled: January 14, 2009Publication date: February 24, 2011Inventors: Haruma Kawaguachi, Akiko Sudo, Yuichiro Mori, Katsuhiko Yagi, Takashi Oka
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Patent number: 7893777Abstract: In a voltage controlled oscillation circuit including a cascade connection of a voltage-to-current conversion circuit (310) for generating an input voltage converted current which is a current corresponding to an input voltage and a current controlled oscillation circuit (120) of which an oscillation frequency varies according to the input voltage converted current, the voltage-to-current conversion circuit (310) includes a first current source for outputting a current in proportion to the input voltage and a plurality of second current sources for outputting a current in proportion to a voltage obtained by shifting the input voltage. Then, a current obtained by adding a current output from the first current source and currents output from the plurality of current sources is output as the input voltage converted current to the current controlled oscillation circuit (120).Type: GrantFiled: March 12, 2007Date of Patent: February 22, 2011Assignee: Panasonic CorporationInventors: Takashi Oka, Seiji Watanabe
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Publication number: 20110034684Abstract: A novel process which can simply prepare a crosslinked hyaluronic acid gel having a small crosslinking agent content and exhibiting excellent viscoelasticity is provided. A process for preparing a crosslinked hyaluronic acid gel, comprising stirring and mixing a mixture containing 10 W/V % or more of hyaluronic acid, a crosslinking agent and water under acidic or alkaline condition.Type: ApplicationFiled: September 27, 2010Publication date: February 10, 2011Applicant: SHISEIDO CO., LTD.Inventors: Yoshihiro Yokokawa, Takashi Oka, Yuichiro Mori, Norio Ueno
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Patent number: 7875692Abstract: A polysiloxane having a phosphorylcholine group represented by the following general formula (1). To develop a method to obtain a polysiloxane having a phosphorylcholine group with ease and great versatility and provide a polysiloxane having a phosphorylcholine group in order to obtain a polysiloxane that has a wide range of application as a biocompatible material and a cosmetic material.Type: GrantFiled: November 20, 2003Date of Patent: January 25, 2011Assignee: Shiseido Company, Ltd.Inventors: Kazuyuki Miyazawa, Takashi Oka
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Publication number: 20100284949Abstract: An object of the present invention is to provide means for enhancing ability to solubilize a low water-soluble substance or to disperse the substance in water. The present invention provides a water-containing composition containing water; at least one polyoxyethylene-polyoxypropylene-added phytosterol or phytostanol represented by the following formula (1): [wherein R represents a phytosterol residue or a phytostanol residue; m is a number from 5 to 100; and n is a number from 5 to 100]; and at least one low water-soluble substance which is in a dissolved state.Type: ApplicationFiled: December 25, 2008Publication date: November 11, 2010Applicant: SHISEIDO COMPANY, LTD.Inventors: Takashi Teshigawara, Reiji Miyahara, Takashi Oka
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Publication number: 20100222900Abstract: Redundancy of control systems for a controlled object is achieved without adding complexity to the configuration so that even when failures occur in one of the control systems, the control of the system as a whole is not affected, and thus the reliability of the system as a whole can be improved. In a multiple redundant control system in which at least one controlled object is driven or controlled by a controller having a plurality of control systems that are connected to each other and that each output information of the self systems and receive input of information of the other systems, each of the control systems detects whether failures occur in the self system and the other systems, and outputs a control signal corresponding to an amount for control of the controlled object by the self control system on the basis of the result of failure detection.Type: ApplicationFiled: February 23, 2010Publication date: September 2, 2010Inventors: Atsushi Kakino, Hiroshi Saito, Takashi Oka, Masahiro Toyama
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Publication number: 20100196429Abstract: The present invention provides: an oil-in-water emulsion composition, into which an oil-soluble drug is stably incorporated and which is excellent in feeling during use; and a method for producing the aforementioned composition, which does not require complicated operations. An oil-in-water emulsion composition comprising; (A) a polyoxyethylene phytosterol, (B) a glycerin fatty acid diester, (C) a polyoxyethylene-polyoxypropylene random copolymer dialkyl ether, (D) an oil-soluble drug, (E) oil, and (F) water; wherein a layered gel structure composed of the components (A) and (B) is present in an emulsion particle in the emulsion composition.Type: ApplicationFiled: July 22, 2008Publication date: August 5, 2010Applicant: SHISEIDO COMPANY LTD.Inventors: Takashi Oka, Reiji Miyahara, Takashi Teshigawara
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Publication number: 20090261911Abstract: A multi-phase oscillator includes a plurality of ring oscillators (21) each having a plurality of output ports and each formed by connecting an odd number of inverters (20) in a ring, and a plurality of resistance elements (30) coupling the output ports between the plurality of ring oscillators (21) so that all of the plurality of ring oscillators (21) operate at an identical frequency while keeping a desired phase relationship. The number of the ring oscillators (21) is not limited to an odd number but may be an even number. The multi-phase oscillator changes the state of a succeeding node of a phase coupling to accord with the state of a preceding node of the phase coupling by using the resistance elements (30) as phase coupling devices. If resistors are used as the resistance elements (30), the phase output accuracy greatly improves and high frequency oscillation is possible.Type: ApplicationFiled: November 30, 2006Publication date: October 22, 2009Inventors: Seiji Watanabe, Takashi Oka, Tetsuo Arakawa
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Publication number: 20090231083Abstract: A variable resistance element comprises a variable resistor of strongly-correlated material sandwiched between two metal electrodes, and the electric resistance between the metal electrodes varies when a voltage pulse is applied between the metal electrodes. Such a switching operation as the ratio of electric resistance between low and high resistance states is high can be attained by designing the metal electrodes and variable resistor appropriately based on a definite switching operation principle. Material and composition of the first electrode and variable resistor are set such that metal insulator transition takes place on the interface of the first electrode in any one of two metal electrodes and the variable resistor by applying a voltage pulse. Two-phase coexisting phase of metal and insulator phases can be formed in the vicinity of the interface between the variable resistor and first electrode by the work function difference between the first electrode and variable resistor.Type: ApplicationFiled: August 8, 2006Publication date: September 17, 2009Inventors: Yasunari Hosoi, Shigeo Ohnishi, Yasushi Ogimoto, Takashi Oka, Naoto Nagaosa, Yoshinori Tokura
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Publication number: 20090220976Abstract: An object of the present invention is to provide a test method for MALT lymphomas for providing genetic diagnosis data which can be used for the diagnosis of MALT lymphomas, identification of disease type, and prediction of progression of pathological conditions and onset thereof and a kit for implementing the method. At least two types of tumor-suppressor genes or cancer-related genes are selected, in particular, at least two types of genes are selected from a gene group consisting of 11 genes in a sample, and the expression levels or the gene expression regulation status of the selected genes are investigated. Early detection and diagnosis with high sensitivity and accuracy can be conducted by quantitatively determining the genetic product and preparing the expression profiles of the gene group on the basis of the results, or by detecting methylation frequencies to analyze the expression regulation.Type: ApplicationFiled: June 15, 2007Publication date: September 3, 2009Applicant: NATIONAL UNIVERSITY CORPORATION OKAYAMA UNIVERSITYInventors: Takashi Oka, Takami Kondo, Tadashi Yoshino, Mamoru Ouchida
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Publication number: 20090197948Abstract: The present invention is to provide a skin external preparation with good moisture retention, a rough skin improving effect, and an improved feeling in use. A skin external preparation comprising a polyoxyalkylene glycol/polyethylene glycol copolymer alkyl ether derivative represented by the below-described general formula (I): (formula I) Y—{O(EO)a/(AO)b—R}k??(I) (In the formula, Y is the residue given by removing hydroxyl groups from a polyhydric alcohol having 3 to 6 hydroxyl groups, and k is the number of hydroxyl groups of the polyhydric alcohol. EO is an oxyethylene group; AO is an oxyalkylene group having 3 to 4 carbon atoms, and 1?a?70, 1?b?70. The percentage of the oxyethylene groups with respect to the sum of the oxyalkylene groups having 3 to 4 carbon atoms and the oxyethylene groups is 20 to 100 mass %. The oxyalkylene group having 3 to 4 carbon atoms and the oxyethylene group are added randomly.Type: ApplicationFiled: May 22, 2007Publication date: August 6, 2009Applicants: Shiseido Co., Ltd., NOF CorporationInventors: Reiji Miyahara, Kouzou Hiwatari, Kei Watanabe, Takashi Oka, Kei-ichi Maruyama, Keiichi Yokozawa
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Publication number: 20090165457Abstract: A double redundancy electro hydrostatic actuator system includes two hydraulic pumps; two fail safe valves connected with the two hydraulic pumps, respectively; one dual tandem hydraulic cylinder connected with the two fail safe valves and having a piston rod, wherein the piston rod is moved by switching supply and discharge of the fluid; two switching valves connected with the two fail safe valves; two accumulators connected with the two switching valves and the two hydraulic pumps, respectively; and two chambers connected with the two switching valves, respectively. Each of the two accumulators accumulates the fluid from a corresponding one of the two hydraulic pumps, and sends the fluid to a corresponding one of the two fail safe valves. The two chambers receive the fluid from the two fail safe valves, respectively.Type: ApplicationFiled: October 14, 2008Publication date: July 2, 2009Inventors: Atsushi Kakino, Hiroshi Saito, Kenta Kawasaki, Takashi Oka
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Publication number: 20090053065Abstract: A disk 10 includes a plurality of dovetail grooves 12 which are spaced at a predetermined angular interval in a circumferential direction and extend in an axial direction. A fan blade 20 includes a dovetail part 22 which is fitted to each of the dovetail grooves in an axial direction and capable of transmitting a centrifugal force produced during rotation to the disk. The fan blade 20 further includes a projecting part 24 which is positioned in rear of the dovetail part 22 and projects outward more than the dovetail grooves 12 in a circumferential direction. The projecting part 24 is set to be such a size that the projecting part does not interfere with the dovetail groove 12 when the dovetail part 22 is positioned on the inner side of the dovetail groove 12 in a radial direction.Type: ApplicationFiled: March 13, 2007Publication date: February 26, 2009Applicant: IHI CorporationInventor: Takashi Oka
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Publication number: 20090022593Abstract: A disk 10 includes a plurality of dovetail grooves 12 which are spaced at a predetermined angular interval in a circumferential direction and extend in an axial direction. A fan blade 20 includes a dovetail part 22 which is fitted to each of the dovetail grooves in an axial direction and capable of transmitting a centrifugal force produced during rotation to the disk. The disk further includes a flange part 14 which is positioned in front of the dovetail grooves and extends outward in a radial direction. A ring-shape retainer member 30 is fitted between a front surface 22a of the dovetail part 22 and a rear surface 16a of the flange part 14 and transmits an axial forward load acting on the fan blade 20 to the disk 10 via the rear surface 16a of the flange part.Type: ApplicationFiled: March 13, 2007Publication date: January 22, 2009Applicant: IHI CORPORATIONInventor: Takashi Oka