Patents by Inventor Mitsuo Ooyama

Mitsuo Ooyama 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).

  • Patent number: 10322572
    Abstract: An adhesive agent comprising a condensation resin having a structural unit obtained by polycondensing a polymerizable monomer containing a monomer (A) having 2 or more carboxyl groups and a monomer (B) having 2 or more amino groups, and meeting at least one of the following (1) and (2): (1) at least one selected from the group consisting of the monomer (A), an anhydride of the monomer (A), and the monomer (B) is liquid at 25° C.; and (2) the condensation resin has a polyoxyalkanediyl group.
    Type: Grant
    Filed: April 12, 2012
    Date of Patent: June 18, 2019
    Assignee: HITACHI CHEMICAL COMPANY, LTD.
    Inventors: Katsuyuki Masuda, Takehiro Fukuyama, Eiichi Shinada, Masashi Okoshi, Kazunori Yamamoto, Masatoshi Yamaguchi, Yasushi Ooyama, Yuuki Yanagita, Mitsuo Katayose
  • Patent number: 6094647
    Abstract: A method for making document information searches. In performing a document search with respect to the desired key word, two stages of presearch are carried out. In a first stage of presearch, a character component table in which an existence of character codes for every document is stated with respect to all the character codes contained in the group of document text data of stored documents is generated, and the character component table is searched for all the character strings constituting a desiredly designated search subject key word to thereby extract all the documents each containing all the character codes constituting the search subject key word. In a second stage of presearch, contracted text data for every document in which adjuncts and duplication of repeatedly stated words contained in advance in the text data are eliminated is generated, and the documents each containing the search subject key words by word are extracted from the documents extracted by the first presearch.
    Type: Grant
    Filed: April 11, 1997
    Date of Patent: July 25, 2000
    Assignee: Hitachi, Ltd.
    Inventors: Kanji Kato, Hiromichi Fujisawa, Mitsuo Ooyama, Hisamitsu Kawaguchi, Atsushi Hatakeyama, Noriyuki Kaneoka, Mitsuru Akizawa, Masaaki Fujinawa, Hidefumi Masuzaki, Masaharu Murakami
  • Patent number: 6043988
    Abstract: When a plurality of hard disks are connected by using a backplane, in order to enable a low-noise installation of the bus and a high-density installation of the hard disk to be simultaneously realized, a signal line of the bus and connectors are installed to the backplane, slots are set to installing regions of the drives, wirings of the signal lines between the connectors are set to, for example, a U-character shape, and a length of signal lines between the connectors is set to be longer than a distance between the connectors adjacent to the bus.
    Type: Grant
    Filed: February 19, 1999
    Date of Patent: March 28, 2000
    Assignee: Hitachi, Ltd.
    Inventors: Hiroki Kanai, Mitsuo Ooyama, Yoshifumi Takamoto
  • Patent number: 5903442
    Abstract: When a plurality of hard disks are connected by using a backplane, in order to enable a low-noise installation of the bus and a high-density installation of the hard disk to be simultaneously realized, a signal line of the bus and connectors are installed to the backplane, slots are set to installing regions of the drives, wirings of the signal lines between the connectors are set to, for example, a U-character shape, and a length of signal lines between the connectors is set to be longer than a distance between the connectors adjacent to the bus.
    Type: Grant
    Filed: August 14, 1996
    Date of Patent: May 11, 1999
    Assignee: Hitachi, Ltd.
    Inventors: Hiroki Kanai, Mitsuo Ooyama, Yoshifumi Takamoto
  • Patent number: 5519857
    Abstract: A method and apparatus for performing a document information search to uncover specified text data containing a given search subject key word from a group of document text data stored in a memory. In the document information search method, two stages of presearch are carried out to perform the document search with respect to a desired subject key word. In a first stage of presearch, a character component table is generated in which the existence of character codes for every document is set forth with respect to all the character codes contained in the group of document text data of stored documents. The character component table is searched for all the character codes comprising a designated search subject key word to thereby extract all documents containing all the character codes comprising the search subject key word. Further, in the presearch step, all texts without the possibility of containing the search subject key word are eliminated.
    Type: Grant
    Filed: November 30, 1992
    Date of Patent: May 21, 1996
    Assignee: Hitachi, Ltd.
    Inventors: Kanji Kato, Hiromichi Fujisawa, Mitsuo Ooyama, Hisamitsu Kawaguchi, Atsushi Hatakeyama, Noriyuki Kaneoka, Mitsuru Akizawa, Masaaki Fujinawa, Hidefumi Masuzaki, Masaharu Murakami
  • Patent number: 5168533
    Abstract: A method and apparatus for making document information search and a magnetic disk unit to be used for realizing the method and apparatus. In the document information search method, in performing document search with respect to a desired subject key word, two stages of presearch are carried out. In a first stage of presearch (step 402), a character component table (500) in which existence of character codes for every document is stated with respect to all the character codes contained in the group of document text data of stored documents is generated, and the character component table is searched for all the character codes constituting a desiredly designated search subject key word to thereby extract all the documents each containing all the character codes constituting the search subject key word.
    Type: Grant
    Filed: August 9, 1990
    Date of Patent: December 1, 1992
    Assignee: Hitachi, Ltd.
    Inventors: Kanji Kato, Hiromichi Fujisawa, Mitsuo Ooyama, Hisamitsu Kawaguchi, Atsushi Hatakeyama, Noriyuki Kaneoka, Mitsuru Akizawa, Masaaki Fujinawa, Hidefumi Masuzaki, Masaharu Murakami
  • Patent number: 4943729
    Abstract: An electron beam lithography system having a contour resolving circuit for resolving original pattern data which is transferred from a host computer into contour portion pattern data and inner portion pattern data in accordance with the designated dimension, for adding flag data to enable the contour portion pattern data and the inner portion pattern data to be discriminated to the resolved pattern data, and for outputting the resolved pattern data with the flag data. By adding the flag data, the contour portion pattern data and inner portion pattern data can be easily discriminated. The operation to change the electron beam irradiation dose in accordance with the contour portion pattern and inner portion pattern can be fairly easily executed. A pattern can be drawn at a high accuracy while preventing a deformation of the drawn figure due to the proximity effect. A data processing amount in the computer can be reduced. A data transfer amount from the host computer can be also reduced.
    Type: Grant
    Filed: December 15, 1988
    Date of Patent: July 24, 1990
    Assignee: Hitachi, Ltd.
    Inventors: Kimiaki Ando, Mitsuo Ooyama, Norio Saitou
  • Patent number: 4829444
    Abstract: A charged particle beam lithography system has a high-throughput and inexpensive system configuration. The system configuration is constituted by a plurality of charged particle optical systems each adapted to focus and deflect a beam of charged particles and irradiate the beam onto a specimen so that the beam draws a desired pattern on the specimen, a plurality of deflection distortion correcting circuits each associated with each of the charged particle optical systems for correcting a deflection distortion of each charged particle optical system, and a common pattern data control circuit for supplying data of a pattern to be drawn to each of the plurality of deflection distortion correcting circuits.
    Type: Grant
    Filed: October 24, 1986
    Date of Patent: May 9, 1989
    Assignee: Hitachi, Ltd.
    Inventors: Norio Saitou, Masahide Okumura, Tsutomu Komoda, Mitsuo Ooyama
  • Patent number: 4820928
    Abstract: A lithography apparatus in which a charged particle ray such as an electron beam or an ion beam is controlled to scan a desired region of a sample and thereby draw a pattern, including a framing pattern memory for storing therein closed framing lines of a pattern to be drawn in the form of dot images, a framing pattern generator for writing the framing lines of the pattern to be drawn into said framing pattern memory in the form of dot images, and a raster scanning circuit for scanning the framing pattern memory having stored therein closed framing lines of the pattern to be drawn and for generating a beam deflection address for drawing the pattern and a beam blanking control signal.
    Type: Grant
    Filed: October 9, 1987
    Date of Patent: April 11, 1989
    Assignee: Hitachi, Ltd.
    Inventors: Mitsuo Ooyama, Kimiaki Ando, Yoshio Kawamura, Norio Saitou, Takanori Simura, Hiroyuki Kohida
  • Patent number: 4758973
    Abstract: A floating-point data processing apparatus operates to generate exponent data of fixed length from floating-point data composed of (a) a sign bit indicating a mantissa sign, (b) a first exponent part which has bit length determined in dependence upon a significant bit length necessary for binary expression of an exponent and which has all its bits determined at 1 or 0 in dependence upon the mantissa sign and the sign of said exponent, (c) a second exponent part which has its bit length determined in dependence upon the bit length of the first exponent part, which has a predetermined relationship determined in dependence upon the sign of the exponent and the mantissa sign with the significant bit part when the exponent is expressed in binary form, and the leading bit of which has a value different from the value of one bit of said first exponent part, and (d) a mantisa part which has a plurality of bits having a bit length determined in dependence upon the value of the exponent.
    Type: Grant
    Filed: September 5, 1985
    Date of Patent: July 19, 1988
    Assignee: Hitachi, Ltd.
    Inventors: Mitsuo Ooyama, Hozumi Hamada, Kimiaki Ando
  • Patent number: 4692579
    Abstract: An electron beam lithography apparatus comprises: a spot electron beam generator; device for exposing a desired pattern onto a wafer using the spot beam; device for dividing the pattern into small regions; and device for designating an origin of the small region and also digitally scanning the portion inside the small region by a fixed correction amount by use of the spot beam, and thereby to reduce the settling time of the D/A converter in association with the digital scanning.
    Type: Grant
    Filed: May 17, 1985
    Date of Patent: September 8, 1987
    Assignees: Hitachi, Ltd., Nippon Telegraph & Telephone Corporation
    Inventors: Norio Saitou, Susumu Ozasa, Masahide Okumura, Mitsuo Ooyama, Tsutomu Komoda, Katsuhiro Harada, Minpei Fujinami, Kazumi Iwadate
  • Patent number: 4626838
    Abstract: An apparatus for filling an interior of a shape to be displayed on a raster scan CRT which reads out a refresh memory. The apparatus includes a memory for storing information of starting points and ending points for filling. The write of a filling color code into the refresh memory is initiated and terminates in response to the filling starting point and the filling ending point, respectively, but inhibited at its memory locations on the contour of the shape. The direction of the filling is perpendicular to the raster scanning of the CRT.
    Type: Grant
    Filed: October 13, 1983
    Date of Patent: December 2, 1986
    Assignee: Hitachi, Ltd.
    Inventors: Shigeo Tsujioka, Seiichi Kanema, Eiji Okamura, Kiyoshi Umezawa, Mitsuo Ooyama, Toshihisa Aoshima, Mitsugu Yoneyama
  • Patent number: 4580236
    Abstract: A graphic display apparatus for generating a vector comprises registers for storing a value R of a vector discrimination, a positive increment P and a negative increment N, and flip-flops for storing magnitude information of .DELTA.X, .DELTA.Y, and .DELTA.X and .DELTA.Y. An address counter of a refresh memory is counted up or down in accordance with the contents of those flip-flops. A control circuit for updating the value R of the vector discrimination is also provided, so that the vector can be generated at a high speed. The registers and the flip-flops are constructed in two stages so that data for generating the next vector can be prepared while the current vector is generated.
    Type: Grant
    Filed: May 24, 1983
    Date of Patent: April 1, 1986
    Assignee: Hitachi, Ltd.
    Inventors: Shigeo Tsujioka, Eiji Okamura, Mitsuo Ooyama, Kimiaki Ando, Seiichi Kanema, Mitsugu Yoneyama, Toshihisa Aoshima, Kiyoshi Umezawa