Patents by Inventor Atsushi Yusa

Atsushi Yusa 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).

  • Publication number: 20100320635
    Abstract: To provide a method for producing a polymer member having a plated film with excellent adhesion by subjecting a polymer member in which a catalyst component is dispersed by using pressurized carbon dioxide to electroless plating under ordinary pressure. A polymer member in which a catalyst component is dispersed is formed by using a pressurized fluid in which a catalyst component containing a metal which serves as a plating catalyst is dissolved in pressurized carbon dioxide; the polymer member in which the catalyst component is dispersed is immersed in an alcohol treatment liquid under ordinary pressure; and the polymer member, which has been subjected to the pretreatment with the alcohol treatment liquid, is immersed in an electroless plating solution containing an alcohol under ordinary pressure to form a plated film.
    Type: Application
    Filed: June 16, 2010
    Publication date: December 23, 2010
    Applicant: Hitachi Maxell, Ltd
    Inventors: Hironori OTA, Atsushi Yusa, Tetsuya Ano
  • Publication number: 20100266771
    Abstract: The present invention provides a method of producing a molded article, which can be perform the continuous processes and effectively impregnate a modifying material such as metal complexes in the thermoplastic resin for short period of time. The above object is achieved by providing the method of producing the thermoplastic resin molded article which includes impregnating the pressurized fluid having a modifying material dissolved therein, in thermoplastic resin; discharging the pressurized fluid from the thermoplastic resin in which the modifying material has been impregnated; and continuously molding the thermoplastic resin, in which the modifying material has been impregnated and from which the pressurized fluid has been discharged, into the form of a film.
    Type: Application
    Filed: June 9, 2010
    Publication date: October 21, 2010
    Applicant: HITACHI MAXELL, LTD.,
    Inventors: Atsushi Yusa, Yoshiyuki Nomura, Harumi Hieida
  • Patent number: 7763195
    Abstract: A molded article includes thermoplastic resin, and an organic material different from the thermoplastic resin inside said molded article, the organic material being located on and near a surface of said molded article.
    Type: Grant
    Filed: March 29, 2007
    Date of Patent: July 27, 2010
    Assignee: Hitachi Maxell, Ltd.
    Inventors: Atsushi Yusa, Teruo Hori
  • Patent number: 7758923
    Abstract: The present invention provides a method of producing a molded article, which can be perform the continuous processes and effectively impregnate a modifying material such as metal complexes in the thermoplastic resin for short period of time. The above object is achieved by providing the method of producing the thermoplastic resin molded article which includes impregnating the high-pressure fluid having a modifying material dissolved therein, in thermoplastic resin, and continuously molding the thermoplastic resin in which the modifying material has been impregnated, into the form of a film.
    Type: Grant
    Filed: August 17, 2006
    Date of Patent: July 20, 2010
    Assignee: Hitachi Maxell Ltd.
    Inventors: Atsushi Yusa, Yoshiyuki Nomura, Harumi Hieida
  • Patent number: 7736558
    Abstract: Provided is an imprint method that includes the steps of softening resist in an object to be processed, by using compressed gas or supercritical fluid, the object including a substrate and the resist applied onto the substrate, and transferring a predetermined pattern onto the resist by pressing a mold that forms the predetermined pattern against the resist in the object.
    Type: Grant
    Filed: January 7, 2004
    Date of Patent: June 15, 2010
    Assignee: Hitachi Maxell, Ltd.
    Inventors: Atsushi Yusa, Toshinori Sugiyama
  • Publication number: 20100128830
    Abstract: A data transfer system which can surely transfer data between two function circuits which operate synchronously with different clock frequencies. A data loading signal is generated just before timing when edges of two clocks of different frequencies coincide. Only information data received by the function circuit on a transfer data reception side within an existence period of the data loading signal is determined to be valid.
    Type: Application
    Filed: November 13, 2009
    Publication date: May 27, 2010
    Applicant: OKI SEMICONDUCTOR CO., LTD.
    Inventor: Atsushi Yusa
  • Publication number: 20100065990
    Abstract: To provide a production method for producing a polymer member in which a pressurized fluid containing a modifying material is introduced more easily and stably into a molten resin in an injection molding machine. This task is solved by providing a production method, for producing a polymer member by using an injection molding machine provided with a mold and a heating cylinder, the method including: introducing, into a molten resin in a heating cylinder, a pressurized fluid containing a modifying material, liquid carbon dioxide, and a liquid in which the modifying material is dissolvable while controlling a flow rate of the pressurized fluid by a cylinder; and injecting the molten resin, into which the pressurized fluid is introduced, into the mold to form the polymer member in which the modifying material is contained in a surface of the polymer member.
    Type: Application
    Filed: February 1, 2008
    Publication date: March 18, 2010
    Applicant: HITACHI MAXELL, LTD.
    Inventors: Atsushi Yusa, Yoshiyuki Nomura
  • Publication number: 20100025880
    Abstract: There is disclosed a process for producing a resin molded article by using a resin into which fine metal particles are so introduced as to be hardly dissolved at the melting temperature of the resin and as to obtain high solubility in a high-pressure carbon dioxide. This process comprises the steps of forming a high-pressure fluid by dissolving, in a high-pressure carbon dioxide, a fluorine-containing metal complex and a fluorine-based solution capable of dissolving the same metal complex; introducing the high-pressure fluid into a heated and molten resin; and molding the resin having the high-pressure fluid introduced thereinto, to shape the molded article.
    Type: Application
    Filed: July 27, 2009
    Publication date: February 4, 2010
    Applicant: HITACHI MAXELL, LTD.
    Inventors: Tetsuya ANO, Atsushi YUSA, Satoshi YAMAMOTO, Toshiyuki OGANO
  • Patent number: 7625514
    Abstract: A method for modifying a surface of a polymer such as a thermoplastic resin is provided, in which a supercritical fluid, especially carbon dioxide in a supercritical state is used as a solvent, and the polymer surface is further converted to have highly advanced function or high performance in a short period of time. In the method for modifying the polymer surface of the present invention, a solute is previously applied to the polymer surface. Accordingly, the solute can be permeated into the surface of the polymer swelled by the contact of the supercritical fluid. When this method is used, it is possible to permeate the solute into the polymer at a high concentration in a short period of time.
    Type: Grant
    Filed: April 22, 2005
    Date of Patent: December 1, 2009
    Assignee: Hitachi Maxell, Ltd.
    Inventors: Atsushi Yusa, Masahiro Oshima
  • Patent number: 7597829
    Abstract: An injection molding method that modifies a surface of thermoplastic resin using a supercritical fluid that contains a solute, and molds the thermoplastic resin, includes the steps of injecting the thermoplastic resin into a mold cavity in a mold, a space being formed between the mold cavity and the surface of the thermoplastic resin, introducing into the space the supercritical fluid that contains the solute, and exhausting from the space the supercritical fluid that contains the solute.
    Type: Grant
    Filed: December 27, 2004
    Date of Patent: October 6, 2009
    Assignee: Hitachi Maxell, Ltd.
    Inventors: Atsushi Yusa, Terumasa Kondo, Toshiyuki Tomita, Masami Suzuki
  • Publication number: 20090153541
    Abstract: A liquid crystal panel driving apparatus that produces a normal display without damaging the liquid crystal panel even when each of a plurality of timing controllers receives an abnormal display data signal. In an exemplary apparatus, each of the timing controllers transmits an abnormality detection signal, which is generated by detecting an abnormality in the display data signal, to other timing controllers via an abnormality detection line, and each of the timing controllers outputs image data associated with the abnormality detection signal stored in an image data memory.
    Type: Application
    Filed: December 12, 2008
    Publication date: June 18, 2009
    Inventor: ATSUSHI YUSA
  • Publication number: 20090021519
    Abstract: A data distribution device includes a pair of first storage units, a second storage unit which includes a dual-port memory, a write unit which repeatedly writes drive data into one of the pair of first storage units and thereafter writes the remaining drive data and a read output unit which outputs the respective concurrently read drive data to the k corresponding drive circuits concurrently, where read addresses read from the dual-port memory are not overtaken by write addresses written to the dual-port memory during the period in which reading and writing of the drive data are being simultaneously performed with respect to the dual-port memory of the second storage unit.
    Type: Application
    Filed: June 17, 2008
    Publication date: January 22, 2009
    Applicant: OKI ELECTRIC INDUSTRY CO., LTD.
    Inventor: Atsushi Yusa
  • Publication number: 20080241514
    Abstract: A method for forming an electroless plating film on surfaces of various types of polymer members is provided, the electroless plating film being formed economically with high adhesion strength. The method for forming the plating film on the polymer member comprises preparing a polymer member including a metal substance, in an internal portion of the polymer member, which serves as plating catalyst cores, the polymer member having a surface on which the plating film is to be formed and which is inactive to the electroless plating solution at an atmospheric pressure; and forming the plating film on the surface of the polymer member by bringing the polymer member in contact with the electroless plating solution to which the pressurized carbon dioxide has been added.
    Type: Application
    Filed: April 2, 2008
    Publication date: October 2, 2008
    Applicant: HITACHI MAXELL, LTD.
    Inventors: Atsushi YUSA, Tetsuya ANO, Yoshiyuki NOMURA, Tetsuo MIZUMURA
  • Patent number: 7389445
    Abstract: In a circuit for detecting an abnormal operation of memory, an integrated circuit including the same and a method for detecting an abnormal operation, an abnormal operation of memory is detected before an error occurs in the integrated circuit of a micro-computer and the like due to data wrongly output from the memory, enhancing the reliability of the integrated circuit. More specifically, a circuit is provided for detecting an abnormal operation of memory and includes a delay circuit for delaying an output data of memory for a predetermined period of time and for outputting this data as a delay data; and a comparison circuit for outputting a noncoincidence signal in a case that the output data of the memory and the delay data as compared are not coincident with each other.
    Type: Grant
    Filed: July 21, 2003
    Date of Patent: June 17, 2008
    Assignee: Oki Electric Industry Co., Ltd.
    Inventor: Atsushi Yusa
  • Publication number: 20080107851
    Abstract: A storage container is provided, which includes carbon dioxide containing a functional material and a container body in which carbon dioxide has been hermetically contained. Accordingly, a method for molding a resin, a method for forming a plating film, and the storage container for carbon dioxide, which are excellent in the mass productively at low cost, are provided without using any special high pressure apparatus for producing a supercritical fluid.
    Type: Application
    Filed: May 31, 2007
    Publication date: May 8, 2008
    Applicant: HITACHI MAXELL, LTD.
    Inventors: Takaki Nasu, Atsushi Yusa, Yoshiyuki Nomura, Masato Fukumori
  • Publication number: 20080038453
    Abstract: A surface modification method is provided, which includes permeating a permeative substance into a surface of a plastic member by using a pressurized fluid, and dissolving the permeative substance with a solvent to remove the permeative substance from the surface of the plastic member. Accordingly, the surface modification method for modifying the surface of the plastic member is provided, which uses the pressurized fluid and which makes it possible to form a metal film having a satisfactory surface roughness and having a high adhesion force.
    Type: Application
    Filed: August 6, 2007
    Publication date: February 14, 2008
    Applicant: HITACHI MAXELL, LTD.
    Inventors: Atsushi Yusa, Yoshiyuki Nomura
  • Patent number: 7299400
    Abstract: An error correction circuit includes a selected-bit reverse circuit, an ECC circuit, a checkbit generation circuit, an ECC data register, a bit-comparing circuit, and an address memory unit. The selected-bit reverse circuit includes memory data and check data from the memory unit. The ECC circuit corrects a one-bit error. The checkbit generation circuit generates checkbits. The ECC data register stores the corrected data and the checkdata. The bit-comparing circuit compares each bit between the output data A from the selected-bit reverse circuit and the output data A? from the ECC data register. The address memory unit stores an address corresponding to the memory data when the bit-comparing circuit detects a discrepancy among the data A and the data A?. The error data memory unit writes the discrepancy information at the bit-location. The data OR circuit generates the first signal.
    Type: Grant
    Filed: February 15, 2005
    Date of Patent: November 20, 2007
    Assignee: Oki Electric Industry Co., Ltd.
    Inventor: Atsushi Yusa
  • Publication number: 20070264451
    Abstract: An electroless plating film with high adhesive strength is formed on surfaces of polymer substrates of various kinds, at low cost by providing a method of manufacturing a polymer member, including: preparing a polymer substrate having metallic fine particles impregnated on and inside a surface thereof; bringing pressurized carbon dioxide into contact with the polymer substrate to swell a surface area of the polymer substrate; and bringing an electroless plating solution containing pressurized carbon dioxide and being in a state causing a plating reaction, into contact with the polymer substrate while the surface area of the polymer substrate is swollen, to form a plating film on the polymer substrate.
    Type: Application
    Filed: May 8, 2007
    Publication date: November 15, 2007
    Applicant: HITACHI MAXELL, LTD.
    Inventors: Atsushi Yusa, Yoshiyuki Nomura, Tetsuo Mizumura, Hideo Daimon
  • Publication number: 20070190310
    Abstract: The present invention provides a method of producing a molded article, which can be perform the continuous processes and effectively impregnate a modifying material such as metal complexes in the thermoplastic resin for short period of time. The above object is achieved by providing the method of producing the thermoplastic resin molded article which includes impregnating the high-pressure fluid having a modifying material dissolved therein, in thermoplastic resin, and continuously molding the thermoplastic resin in which the modifying material has been impregnated, into the form of a film.
    Type: Application
    Filed: August 17, 2006
    Publication date: August 16, 2007
    Applicant: HITACHI MAXELL, LTD.
    Inventors: Atsushi Yusa, Yoshiyuki Nomura, Harumi Hieida
  • Publication number: 20070166530
    Abstract: A molded article includes thermoplastic resin, and an organic material different from the thermoplastic resin inside said molded article, the organic material being located on and near a surface of said molded article.
    Type: Application
    Filed: March 29, 2007
    Publication date: July 19, 2007
    Applicant: HITACHI MAXELL, LTD.
    Inventors: Atsushi Yusa, Teruo Hori