Patents by Inventor Koji Arai

Koji Arai 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: 20060011775
    Abstract: A reel member assembly is formed of a plurality of reel members connected to each other. Each reel member includes a winding spool around which a given film can be wound and a flange mounted on the winding spool and having a guide groove for passing the film. The winding spools are axially connectable to each other. Each reel member includes a plurality of flanges mounted on the winding spool.
    Type: Application
    Filed: September 19, 2005
    Publication date: January 19, 2006
    Applicant: Sony Chemicals Corp.
    Inventors: Koji Arai, Masahiko Ito
  • Publication number: 20060007373
    Abstract: An object is to provide a reflective color conversion color filter capable of reducing loss of outdoor daylight in reflection display, and a reflective display device using this filter, a color filter layer and a color conversion layer are stacked in this order on a reflective layer, as the color conversion layer, the color filter layer is configured to absorb a part of light of a wavelength region absorbed by the color filter layer and to convert the part into light of a wavelength region transmitted by the color filter layer, and the reflective color conversion color filter is constituted.
    Type: Application
    Filed: April 20, 2005
    Publication date: January 12, 2006
    Applicant: DAI NIPPON PRINTING CO., LTD.
    Inventors: Koji Arai, Koji Ishizaki
  • Publication number: 20050210210
    Abstract: The first storage subsystem, when new data is written in a first memory device beyond a certain timing, writes pre-updated data prior to update by said new data into a pre-updated data memory region and, in addition, updates snapshot management information that expresses a snapshot of a data group within the first memory device to information that expresses the snapshot at the certain timing and, at a later timing than the certain timing, judges, on the basis of the snapshot management information, in which of either the pre-updated data memory region or the first memory device the data constituting the data group at a certain timing exists, acquires data from the one in which the data exists and writes it into the second memory device of the second storage subsystem, and generates the certain timing repeatedly.
    Type: Application
    Filed: March 17, 2005
    Publication date: September 22, 2005
    Inventors: Koji Arai, Koji Nagata
  • Patent number: 6918165
    Abstract: A multi-layer capacitor is highly downsized and increased in capacity. A method for manufacturing the multi-layer capacitor includes, in the same vacuum chamber, forming a dielectric layer, treating a surface of the dielectric layer, forming a pattern in a metal electrode, forming the metal electrode on the dielectric layer, and treating a surface of the metal electrode. In this method, etching of the dielectric layer flattens a recessed part generated by an electrical insulation part.
    Type: Grant
    Filed: May 14, 2003
    Date of Patent: July 19, 2005
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Koji Arai, Yuichiro Yamada
  • Patent number: 6918560
    Abstract: A winding apparatus adaptable to longer films with minimum design changes in existing apparatus has a winding shaft 31 on which a reel member 50 capable of winding a given film at multiple stages can be mounted. The winding shaft 31 can be moved in the rotational and axial directions of the reel member 50. The winding apparatus 10 further has a driving mechanism 40 for giving power in the rotational and axial directions to the winding shaft 31.
    Type: Grant
    Filed: August 19, 2003
    Date of Patent: July 19, 2005
    Assignee: Sony Chemicals Corporation
    Inventor: Koji Arai
  • Patent number: 6894887
    Abstract: A multi-layer capacitor is highly downsized and increased in capacity. A method for manufacturing the multi-layer capacitor includes, in the same vacuum chamber, forming a dielectric layer, a surface of the dielectric layer, forming a pattern in a metal electrode, forming the metal electrode on the dielectric layer, and treating a surface of the metal electrode. In this method, etching of the dielectric layer flattens a recessed part generated by an electrical insulation part.
    Type: Grant
    Filed: December 9, 2003
    Date of Patent: May 17, 2005
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Koji Arai, Yuichiro Yamada
  • Publication number: 20050084001
    Abstract: A transmission level control method in a wireless local loop system capable of suppressing occurrence of an unnecessarily high transmission level, comprises a step of generating a required reception level corresponding to a classification of data, a step of detecting the reception level of data at a receiver side transceiver apparatus, a step of finding a level difference between the detected reception level and the required reception level corresponding to the classification of the related received data, and a step of controlling a change of the transmission level at a transmitter side transceiver apparatus according to this level difference.
    Type: Application
    Filed: November 5, 2004
    Publication date: April 21, 2005
    Inventors: Shoichi Sato, Koji Arai
  • Publication number: 20050028125
    Abstract: Bit lines and a pair of two tungsten wires having the same widths are formed at a portion where a through-hole is to be formed such that the bit lines and the tungsten wires are arranged at regular intervals. A through-hole for connection to another wiring layer is formed between the tungsten wires. A connection wiring made of tungsten is formed over the through-hole so as to have a predetermined margin around the through-hole. In a photolithography process, a slit having a small width enough to be insensitive to a photo-resist is formed so as to span the through-hole.
    Type: Application
    Filed: June 25, 2004
    Publication date: February 3, 2005
    Inventors: Yuko Watanabe, Koji Arai, Seiji Narui
  • Patent number: 6829488
    Abstract: A transmission level control method in a wireless local loop system capable of suppressing occurrence of an unnecessarily high transmission level, comprises a step of generating a required reception level corresponding to a classification of data, a step of detecting the reception level of data at a receiver side transceiver apparatus, a step of finding a level difference between the detected reception level and the required reception level corresponding to the classification of the related received data, and a step of controlling a change of the transmission level at a transmitter side transceiver apparatus according to this level difference.
    Type: Grant
    Filed: September 13, 1999
    Date of Patent: December 7, 2004
    Assignee: Fujitsu Limited
    Inventors: Shoichi Sato, Koji Arai
  • Publication number: 20040233770
    Abstract: A semiconductor integrated circuit is provided which includes a first memory array including a plurality of first bit lines, a plurality of first word lines, and a plurality of first memory cells, the plurality of first memory cells being provided at intersections of the plurality of first bit lines and the plurality of first word lines. Each of the plurality of first bit lines has a first line and a second line connected with the first line via a first contact, in which the first line and the second line are formed of different layers from one another.
    Type: Application
    Filed: June 29, 2004
    Publication date: November 25, 2004
    Inventors: Hiroki Fujisawa, Riichiro Takemura, Koji Arai
  • Publication number: 20040233139
    Abstract: Disclosed is a color conversion member which is improved in the prevention of a deterioration in color conversion function, the prevention of reflection of external light, and color rendering properties. The color conversion member comprises a transparent substrate, two or more types of color conversion layers, and a color filter layer. The color conversion layers function to convert incident lights for respective pixels to outgoing lights of colors different from the incident lights. The two or more types of color conversion layers are arranged on said transparent substrate. The color filter layer is provided on the transparent substrate side of any one of the color conversion layers or between the above any one of the color conversion layers and the color conversion layers adjacent to the above any one the color conversion layers.
    Type: Application
    Filed: October 7, 2003
    Publication date: November 25, 2004
    Inventors: Masaaki Asano, Koji Arai
  • Publication number: 20040232273
    Abstract: A method adaptable for winding a long adhesive film at multiple stages in such a diameter that adhesive cannot be squeezed out is provided, as is a reel member that can be applied to this method. A reel member 50A includes a winding spool 52A around which a given film can be wound, and a plurality of flanges 51A mounted on the winding spool 52A and each having a guide groove 53A for passing the film from winding spool 52A on one side to winding spool 52A on the other side of the flange 51A.
    Type: Application
    Filed: August 18, 2003
    Publication date: November 25, 2004
    Applicant: Sony Chemicals Corp.
    Inventors: Koji Arai, Masahiko Ito
  • Patent number: 6816948
    Abstract: In a storage area network (SAN), when a host accesses a storage system, the host is certified to restrict any unauthorized access. The storage system includes an access setting section and a certifying section to restrict accesses from respective hosts. When a host accesses data on a disk, the host issues an inquiry to a file server program of a host to receive information of a physical location of a file containing the data on the disk. The host accesses the disk according to the information. Simultaneously, the file server program allows, by a disk management program, the access to the area specified by the access request from the host.
    Type: Grant
    Filed: August 8, 2001
    Date of Patent: November 9, 2004
    Assignee: Hitachi, Ltd.
    Inventors: Manabu Kitamura, Koji Arai
  • Publication number: 20040213154
    Abstract: A transmission level control method in a wireless local loop system capable of suppressing occurrence of an unnecessarily high transmission level, comprises a step of generating a required reception level corresponding to a classification of data, a step of detecting the reception level of data at a receiver side transceiver apparatus, a step of finding a level difference between the detected reception level and the required reception level corresponding to the classification of the related received data, and a step of controlling a change of the transmission level at a transmitter side transceiver apparatus according to this level difference.
    Type: Application
    Filed: May 27, 2004
    Publication date: October 28, 2004
    Inventors: Shoichi Sato, Koji Arai
  • Patent number: 6765815
    Abstract: The present invention discloses a semiconductor memory device having a multilevel interconnection structure with no conventional limitation on the number of lines. The semiconductor memory device has a multilevel interconnection structure in which column selection lines extending in the Y direction and main word lines extending in the X direction are arranged in different layers. The layer including the column selection lines is disposed under the layer including the main word lines. In the structure, in sub-word driver areas intersecting the X direction, the main word lines are arranged in a top layer and sub-word selection lines are arranged in a layer lower than the top layer. The lower layer includes a pattern of islands. According to this interconnection structure, the number of islands can be reduced. Consequently, a plurality of power lines can be arranged between the adjacent main word lines in the sub-word driver areas.
    Type: Grant
    Filed: May 29, 2003
    Date of Patent: July 20, 2004
    Assignees: Elpida Memory, Inc., Hitachi, Ltd., Hitachi ULSI Systems Co., Ltd.
    Inventors: Hiroki Fujisawa, Koji Arai, Chiaki Dono
  • Patent number: 6762949
    Abstract: A semiconductor memory includes a plurality of memory arrays and a plurality of sense amplifiers arranged alternately with respect to each of the memory arrays. The sense amplifiers are coupled to bit lines of the memory arrays to form an open bit line type semiconductor memory. In conjunction with this structure, two memory arrays at end portions of the semiconductor memory device are both selected together, whereas a memory array in an inner portion of the semiconductor memory device is selected independently.
    Type: Grant
    Filed: July 28, 2003
    Date of Patent: July 13, 2004
    Assignees: Hitachi, Ltd., Hitachi ULSI System Co., Ltd.
    Inventors: Hiroki Fujisawa, Riichiro Takemura, Koji Arai
  • Patent number: 6757084
    Abstract: To control a light emitted from a fluorescent lamp having phosphors with different afterglow properties for different colors, a center of a lighting control signal for controlling the lighting of the fluorescent lamp is controlled to constantly align with the center of a Hsync period so that despite the variation of the lighting time of the fluorescent lamp, a barycenter of the quantity of light from the fluorescent lamp in the Hsync period almost aligns with the center of the Hsync period to reduce the offset of the barycenter.
    Type: Grant
    Filed: August 19, 1999
    Date of Patent: June 29, 2004
    Assignee: Canon Kabushiki Kaisha
    Inventors: Mitsuru Kurita, Hiroshi Sato, Koji Arai, Koichi Ishimoto, Taro Ikeda, Takashi Sugiura
  • Publication number: 20040114306
    Abstract: A present invention provides a multi-layer capacitor that can be highly downsized and increased in capacity. A present invention provides a method for manufacturing the multi-layer capacitor including a process of forming a dielectric in the same vacuum chamber, a process of treating a surface of the dielectric, a process of forming a pattern in a metal electrode, a process of forming the metal electrode, and a process of treating a surface of the metal electrode. In this method, etching the dielectric layer flattens a recessed part generated by an electric insulation part.
    Type: Application
    Filed: December 9, 2003
    Publication date: June 17, 2004
    Inventors: Koji Arai, Yuichiro Yamada
  • Publication number: 20040066698
    Abstract: The present invention discloses a semiconductor memory device having a multilevel interconnection structure with no conventional limitation on the number of lines. The semiconductor memory device has a multilevel interconnection structure in which column selection lines extending in the Y direction and main word lines extending in the X direction are arranged in different layers. The layer including the column selection lines is disposed under the layer including the main word lines. In the structure, in sub-word driver areas intersecting the X direction, the main word lines are arranged in a top layer and sub-word selection lines are arranged in a layer lower than the top layer. The lower layer includes a pattern of islands. According to this interconnection structure, the number of islands can be reduced. Consequently, a plurality of power lines can be arranged between the adjacent main word lines in the sub-word driver areas.
    Type: Application
    Filed: May 29, 2003
    Publication date: April 8, 2004
    Inventors: Hiroki Fujisawa, Koji Arai, Chiaki Dono
  • Publication number: 20040050992
    Abstract: An object of the present invention is to provide a winding apparatus adaptable to longer films with minimum design changes in existing apparatus.
    Type: Application
    Filed: August 19, 2003
    Publication date: March 18, 2004
    Applicant: SONY CHEMICALS CORP.
    Inventor: Koji Arai