Patents by Inventor Tomohiro Ichikawa

Tomohiro Ichikawa 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: 20210151385
    Abstract: A method for manufacturing a semiconductor device includes: forming an insulating film on a surface of a semiconductor layer of a semiconductor substrate; forming a contact hole in the insulating film; forming a conductor material on the insulating film to be in contact with the semiconductor layer through the contact hole; and patterning the conductor material using an alignment key included in the conductor material.
    Type: Application
    Filed: January 27, 2021
    Publication date: May 20, 2021
    Inventors: Aiko KAJI, Haruhito ICHIKAWA, Shuhei MITANI, Tomohiro MIMURA, Yukihiro WAKASUGI, Narumasa SOEJIMA
  • Publication number: 20200246779
    Abstract: A catalyst includes a carrier, and a metal obtained by reducing a metal ion supported on the carrier 1) in a supercritical state or 2) in a polar organic solvent, wherein the carrier is an inorganic porous body having a hierarchical porous structure. By employing the catalyst, it is possible to exhibit better catalytic activity than a conventional catalyst. Heat generation and spontaneous ignition are prevented because no organic porous body is used.
    Type: Application
    Filed: September 28, 2018
    Publication date: August 6, 2020
    Applicant: SnG Inc.
    Inventors: Riichi MIYAMOTO, Hongzhi BAI, Hironao SAJIKI, Tomohiro ICHIKAWA, Masahiro MIZUNO, Aya OGAWA, Hayato MASUDA, Tsuyoshi YAMADA, Tomohiro MATSUO, Yutaka KOBAYASHI
  • Publication number: 20170084910
    Abstract: A negative electrode plate for nonaqueous electrolyte secondary batteries according to an embodiment of the present invention includes a negative electrode mix layer, placed on a negative electrode core, containing a negative electrode active material capable of storing and releasing lithium ions. The negative electrode core is copper foil having a thickness of 5.9 ?m to 8.1 ?m and a surface roughness Rz of 0.8 ?m to 1.5 ?m. The negative electrode mix layer contains the negative electrode active material, a binding agent, and a carboxymethylcellulose-ammonium salt. The negative electrode active material is composed of a mixture of a graphite material and a silicon oxide represented by SiOx (0.5?x<1.6). The content of the silicon oxide in the negative electrode active material is 0.5% to 20% by mass.
    Type: Application
    Filed: March 18, 2015
    Publication date: March 23, 2017
    Applicant: SANYO Electric Co., Ltd.
    Inventors: Tomohiro Ichikawa, Yasunobu Iwami, Katsuya Imai
  • Patent number: 9298444
    Abstract: A software updating method for updating software stored as compressed code in a nonvolatile memory provided in a portable terminal on the basis of differential data via wireless communication includes the steps of providing a file system area having a fault-tolerant property; decompressing, at the execution of software updating, the compressed code of the software and loading the decompressed code into a random-access memory; updating the software in the random-access memory on the basis of the differential data; compressing the updated software; and storing a backup of a compressed updated code sequence corresponding to a compressed updated portion of the compressed updated software in the file system area and then writing the compressed updated code sequence corresponding to the compressed updated portion of the compressed updated software back to the nonvolatile memory.
    Type: Grant
    Filed: May 23, 2008
    Date of Patent: March 29, 2016
    Assignees: SONY CORPORATION, SONY MOBILE COMMUNICATIONS INC.
    Inventors: Yasuyuki Hirao, Katsumi Aoyagi, Toshihisa Sanbommatsu, Tomohiro Ichikawa, Kenji Asa
  • Patent number: 8826263
    Abstract: A portable terminal includes: a storage unit for storing at least a first program and software converting data to convert the first program into a second program; a storage control unit to perform reading and writing of the program and data as to the storage unit; a software converting processing unit to execute processing that converts the first program into the second program, using the first program and software converting data read by the storage control unit from the storage unit; and a terminal starting control unit to execute at the time of terminal startup one or the other of starting up the first program, and starting up the converting processing from the first program to the second program by the program converting processing unit and the second program that has been converted.
    Type: Grant
    Filed: July 10, 2009
    Date of Patent: September 2, 2014
    Assignees: Sony Corporation, Sony Mobile Communications Inc.
    Inventors: Tomohiro Ichikawa, Yasuyuki Hirao, Katsumi Aoyagi, Kenji Asa
  • Patent number: 8819662
    Abstract: A terminal device may include: a communication interface to receive, from a server via a network, a file for updating software in a memory device coupled with the terminal device, and a software update table that includes data regarding one or more performance values and one or more time values indicative of one or more lengths of time taken to update the software using the file; a processor to obtain data regarding a performance value of the memory device, select, from the software update table, one of the one or more performance values based on the performance value of the memory device, and obtain, from the software update table, a time value associated with the selected performance value; and an output device to provide an output corresponding to the obtained time value. Each performance value is associated with one of the one or more time values, respectively.
    Type: Grant
    Filed: June 11, 2012
    Date of Patent: August 26, 2014
    Assignees: Sony Corporation, Sony Mobile Communications Inc.
    Inventors: Katsumi Aoyagi, Miki Suzuki, Yasuyuki Hirao, Hidefumi Kaneko, Takeshi Kanemoto, Tomohiro Ichikawa
  • Patent number: 8795858
    Abstract: An aspect of the present invention relates to a magnetic recording medium comprising a nonmagnetic layer containing a nonmagnetic powder and a binder and a magnetic layer containing a ferromagnetic powder and a binder in this order on a nonmagnetic support, wherein the binder of the magnetic layer is a mixture of a vinyl chloride copolymer, polyurethane resin, and polyisocyanate, the polyurethane resin having a glass transition temperature ranging from 90 to 130° C. and a storage elastic modulus at 80° C. ranging from 2.5 to 5.0 GPa, the nonmagnetic layer is a radiation-cured layer formed by curing with radiation a radiation-curable composition comprising a nonmagnetic powder and a binder component, the binder component comprising a radiation-curable vinyl chloride copolymer and a radiation-curable polyurethane resin, and the radiation-curable vinyl chloride copolymer and radiation-curable polyurethane resin both have glass transition temperatures ranging from 30 to 100° C.
    Type: Grant
    Filed: March 18, 2011
    Date of Patent: August 5, 2014
    Assignee: FUJIFILM Corporation
    Inventors: Masahide Sato, Katsumi Araki, Kazufumi Omura, Tomohiro Ichikawa, Shinji Tsujimoto, Tadahiro Ooishi
  • Patent number: 8706954
    Abstract: A terminal apparatus including a non-volatile memory for which writing is performed in units of blocks; and a control unit configured to perform a first method of managing bad blocks in the non-volatile memory with respect to blocks corresponding to an information management table in a file system of the non-volatile memory, and to perform a second method of managing bad blocks in the non-volatile memory with respect to blocks corresponding to user data in the file system.
    Type: Grant
    Filed: May 11, 2011
    Date of Patent: April 22, 2014
    Assignees: Sony Corporation, Sony Mobile Communications AB
    Inventors: Katsumi Aoyagi, Rutger Ljungqvist, Hans Wachtmeister, Haekan Palm, Kenji Takao, Masaya Takahashi, Yoshiyuki Hama, Yimin Li, Toshihisa Sanbommatsu, Tomohiro Ichikawa
  • Patent number: 8617728
    Abstract: An aspect of the present invention relates to a magnetic tape comprising a nonmagnetic layer containing a nonmagnetic powder and a binder and a magnetic layer containing a ferromagnetic powder and a binder in this order on a nonmagnetic support. The nonmagnetic layer is a radiation-cured layer formed by curing with radiation a given radiation-curable composition. The nonmagnetic layer has a thickness ranging from 0.5 to 1.3 ?m. The relation between the nonmagnetic powder and the binder component contained in the radiation-curable composition satisfies equation (I): 480?(BET specific surface area of the nonmagnetic powder (m2/g)×weight of the nonmagnetic powder (g))/weight of the binder component (g)?650??(I).
    Type: Grant
    Filed: March 15, 2011
    Date of Patent: December 31, 2013
    Assignee: FUJIFILM Corporation
    Inventors: Shinji Tsujimoto, Katsumi Araki, Tomohiro Ichikawa
  • Publication number: 20130332918
    Abstract: A terminal device may include: a communication interface to receive, from a server via a network, a file for updating software in a memory device coupled with the terminal device, and a software update table that includes data regarding one or more performance values and one or more time values indicative of one or more lengths of time taken to update the software using the file; a processor to obtain data regarding a performance value of the memory device, select, from the software update table, one of the one or more performance values based on the performance value of the memory device, and obtain, from the software update table, a time value associated with the selected performance value; and an output device to provide an output corresponding to the obtained time value. Each performance value is associated with one of the one or more time values, respectively.
    Type: Application
    Filed: June 11, 2012
    Publication date: December 12, 2013
    Applicant: SONY MOBILE COMMUNICATIONS JAPAN, INC.
    Inventors: Katsumi Aoyagi, Miki Suzuki, Yasuyuki Hirao, Hidefumi Kaneko, Takeshi Kanemoto, Tomohiro Ichikawa
  • Publication number: 20120059979
    Abstract: A terminal apparatus including a non-volatile memory for which writing is performed in units of blocks; and a control unit configured to perform a first method of managing bad blocks in the non-volatile memory with respect to blocks corresponding to an information management table in a file system of the non-volatile memory, and to perform a second method of managing bad blocks in the non-volatile memory with respect to blocks corresponding to user data in the file system.
    Type: Application
    Filed: May 11, 2011
    Publication date: March 8, 2012
    Applicant: SONY ERICSSON MOBILE COMMUNICATIONS AB
    Inventors: Katsumi AOYAGI, Rutger Ljungqvist, Hans Wachtmeister, Haekan Palm, Kenji Takao, Masaya Takahashi, Yoshiyuki Hama, Yimin Li, Toshihisa Sanbommatsu, Tomohiro Ichikawa
  • Publication number: 20110229740
    Abstract: An aspect of the present invention relates to a magnetic tape comprising a nonmagnetic layer containing a nonmagnetic powder and a binder and a magnetic layer containing a ferromagnetic powder and a binder in this order on a nonmagnetic support. The nonmagnetic layer is a radiation-cured layer formed by curing with radiation a given radiation-curable composition. The nonmagnetic layer has a thickness ranging from 0.5 to 1.3 ?m. The relation between the nonmagnetic powder and the binder component contained in the radiation-curable composition satisfies equation (I): 480?(BET specific surface area of the nonmagnetic powder (m2/g)×weight of the nonmagnetic powder (g))/weight of the binder component (g)?650??(I).
    Type: Application
    Filed: March 15, 2011
    Publication date: September 22, 2011
    Applicant: FUJIFILM CORPORATION
    Inventors: Shinji TSUJIMOTO, Katsumi ARAKI, Tomohiro ICHIKAWA
  • Publication number: 20110229741
    Abstract: An aspect of the present invention relates to a magnetic recording medium comprising a nonmagnetic layer containing a nonmagnetic powder and a binder and a magnetic layer containing a ferromagnetic powder and a binder in this order on a nonmagnetic support, wherein the binder of the magnetic layer is a mixture of a vinyl chloride copolymer, polyurethane resin, and polyisocyanate, the polyurethane resin having a glass transition temperature ranging from 90 to 130° C. and a storage elastic modulus at 80° C. ranging from 2.5 to 5.0 GPa, the nonmagnetic layer is a radiation-cured layer formed by curing with radiation a radiation-curable composition comprising a nonmagnetic powder and a binder component, the binder component comprising a radiation-curable vinyl chloride copolymer and a radiation-curable polyurethane resin, and the radiation-curable vinyl chloride copolymer and radiation-curable polyurethane resin both have glass transition temperatures ranging from 30 to 100° C.
    Type: Application
    Filed: March 18, 2011
    Publication date: September 22, 2011
    Applicant: FUJIFILM CORPORATION
    Inventors: Masahide SATO, Katsumi ARAKI, Kazufumi OMURA, Tomohiro ICHIKAWA, Shinji TSUJIMOTO, Tadahiro OOISHI
  • Patent number: 7797573
    Abstract: A memory management method for managing a non-volatile memory into which writing is performed in units of blocks includes the steps of assigning a plurality of blocks of the non-volatile memory to a management area formed of at least one block for storing management information, to a code area formed of a plurality of blocks into which program code is written, to a substitution area formed of a plurality of blocks for substituting for a defective block, and to an interference area formed of at least one block; storing at least correspondence information between the blocks of the substitution area and a defective block of a substitution target as management information within the management area; and using the block of the substitution area in place of the defective block on the basis of the correspondence information when the defective block is to be used.
    Type: Grant
    Filed: July 31, 2007
    Date of Patent: September 14, 2010
    Assignee: Sony Ericsson Mobile Communications Japan, Inc.
    Inventors: Katsumi Aoyagi, Tomohiro Ichikawa, Yoshinori Motoyama, Satoshi Hirano, Toshihisa Sanbommatsu, Toru Hayami, Tadashi Kamohara, Kazutoshi Nagatani
  • Publication number: 20100042985
    Abstract: A portable terminal includes: a storage unit for storing at least a first program and software converting data to convert the first program into a second program; a storage control unit to perform reading and writing of the program and data as to the storage unit; a software converting processing unit to execute processing that converts the first program into the second program, using the first program and software converting data read by the storage control unit from the storage unit; and a terminal starting control unit to execute at the time of terminal startup one or the other of starting up the first program, and starting up the converting processing from the first program to the second program by the program converting processing unit and the second program that has been converted.
    Type: Application
    Filed: July 10, 2009
    Publication date: February 18, 2010
    Applicant: SONY ERICSSON MOBILE COMMUNICATIONS JAPAN, INC.
    Inventors: Tomohiro ICHIKAWA, Yasuyuki HIRAO, Katsumi AOYAGI, Kenji ASA
  • Patent number: 7584379
    Abstract: A mobile terminal having a communication function. The apparatus includes: a nonvolatile memory including a memory area storing a main-unit program including an update engine for updating software and an alternative unit area for a unit area in the memory area; a working memory; and control means for accessing both of the memories. The control means downloads differential data between a version of the main-unit program and a version of a new main-unit program, expands the update engine into the working memory area, executes the update engine, updates the main-unit program for each unit area by the differential data, completes the update processing if the update has been successful, and performs the unit-area update processing on the alternative unit area and replaces the defective unit area by the alternative unit area if a defect of a unit area has been detected at the time of the update.
    Type: Grant
    Filed: February 1, 2007
    Date of Patent: September 1, 2009
    Assignee: Sony Ericsson Mobile Communications Japan, Inc.
    Inventors: Katsumi Aoyagi, Tomohiro Ichikawa, Yoshinori Motoyama
  • Publication number: 20090214768
    Abstract: A process for producing a magnetic recording medium is provided, the process comprising in sequence a step of forming a non-magnetic layer by applying a non-magnetic coating liquid above a non-magnetic support, a step of curing the non-magnetic layer by irradiation with radiation, and a step of forming a magnetic layer above the cured non-magnetic layer, the non-magnetic coating liquid comprising a resin having a hydroxy group and/or an amino group and a compound having an isocyanato group and/or a substituent represented by Formula (1) below and a radiation curing functional group. (In Formula (1) above, X1 is Formula (2) or Formula (3) below, and * denotes a bonding position).
    Type: Application
    Filed: February 18, 2009
    Publication date: August 27, 2009
    Applicant: FUJIFILM Corporation
    Inventors: Tomohiro ICHIKAWA, Hirotaka Sato, Masahiko Mori
  • Publication number: 20090087685
    Abstract: The magnetic recording medium comprises a magnetic layer comprising a ferromagnetic powder and a binder on a nonmagnetic support. The magnetic layer has an average surface roughness Ra, measured by an atomic force microscope, ranging from 2.0 to 3.5 nm and an indentation hardness ranging from 0.49 GPa to 0.78 GPa, as well as further comprises a carbonic ester having a molecular weight of 360 to 460 that is denoted by general formula (1). In general formula (1), R1 denotes a saturated hydrocarbon group having a branched structure, and R2 denotes a saturated hydrocarbon group having a linear structure with 14 to 20 carbon atoms.
    Type: Application
    Filed: September 29, 2008
    Publication date: April 2, 2009
    Applicant: FUJIFILM Corporation
    Inventors: Tomohiro ICHIKAWA, Mikio OHNO
  • Publication number: 20090007090
    Abstract: A software updating method for updating software stored as compressed code in a nonvolatile memory provided in a portable terminal on the basis of differential data via wireless communication includes the steps of providing a file system area having a fault-tolerant property; decompressing, at the execution of software updating, the compressed code of the software and loading the decompressed code into a random-access memory; updating the software in the random-access memory on the basis of the differential data; compressing the updated software; and storing a backup of a compressed updated code sequence corresponding to a compressed updated portion of the compressed updated software in the file system area and then writing the compressed updated code sequence corresponding to the compressed updated portion of the compressed updated software back to the nonvolatile memory.
    Type: Application
    Filed: May 23, 2008
    Publication date: January 1, 2009
    Applicant: SONY ERICSSON MOBILE COMMUNICATIONS JAPAN INC.
    Inventors: Yasuyuki HIRAO, Katsumi Aoyagi, Toshihisa Sanbommatsu, Tomohiro Ichikawa, Kenji Asa
  • Publication number: 20080259495
    Abstract: An object is to provide a leader tape which suppresses the increase of dropout resulting from imprinting of the drive reel or leader block part due to storage for a long time or running at a high temperature and hardly causes the edge damage of a magnetic tape, and also provide a magnetic tape cartridge using the leader tape. 1) A leader tape comprising a support having provided on at least one surface thereof a coating layer comprising a powder material and a binder, wherein the center line average roughness (Ra) on at least one surface of the leader tape is from 10 to 60 nm and the friction coefficient against an Al2O3/TiC member is from 0.1 to 0.
    Type: Application
    Filed: April 13, 2005
    Publication date: October 23, 2008
    Inventors: Tomohiro Ichikawa, Kiyomi Ejiri