Patents by Inventor Yoshimasa Hagiwara

Yoshimasa Hagiwara 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).

  • Method of controlling video game, video game device, and medium recording video game program
    Patent number: 6758756
    Abstract: The present invention relates to a method for controlling a novel video game in which dancing is used as a factor in the behavior of a character, a machine for the video game, and a medium in which a program for the video game is recorded, and makes it possible to dance characters 611 and 612 displayed using 3-D polygons in time with music, to evaluate their dance skills based mainly on whether dance actions are in time with the music, and to proceed with a story by winning matches with a computer or to match with other players.
    Type: Grant
    Filed: December 3, 1999
    Date of Patent: July 6, 2004
    Assignee: Konami Co., Ltd.
    Inventors: Atsushi Horigami, Satoshi Shimo, Chiaki Nakanishi, Yoshimasa Hagiwara, Eriko Yamada, Naomitsu Tsugiiwa, Masafumi Kamio, Yukiko Daitoku, Ryo Kato, Masayuki Takahashi
  • Process for producing optically active 2-hydroxy-4-arylbutyric acid or its ester
    Patent number: 6258975
    Abstract: Provided is an industrially useful process for producing an optically active 2-hydroxy-4-arylbutyric acid or its ester. An optically active acyloxysuccinic anhydride is reacted with an aromatic compound in the presence of a Lewis acid to produce an optically active 2-acyloxy-4-oxo-4-arylbutyric acid. The 2-acyloxy-4-oxo-4-arylbutyric acid is converted to an optically active 2-acyloxy-4-arylbutyric acid through catalytic reduction. The 2-acyloxy-4-arylbutyric acid is hydrolyzed in the presence of an acid or an alkali to produce an optically active 2-hydroxy-4-arylbutyric acid. The 2-hydroxy-4-arylbutyric acid is reacted with an alcohol in the presence of an acid to produce an optically active 2-hydroxy-4-arylbutyric acid ester.
    Type: Grant
    Filed: January 5, 2000
    Date of Patent: July 10, 2001
    Assignee: Ajinomoto Co., Inc.
    Inventors: Masahiko Kurauchi, Yoshimasa Hagiwara, Hiroyuki Matsueda, Takashi Nakano, Kunisuke Izawa
  • Process for producing optically active 2-hydroxy-4-arylbutyric acid or its ester
    Patent number: 6087526
    Abstract: Provided is an industrially useful process for producing an optically active 2-hydroxy-4-arylbutyric acid or its ester. An optically active acyloxysuccinic anhydride is reacted with an aromatic compound in the presence of a Lewis acid to produce an optically active 2-acyloxy-4-oxo-4-arylbutyric acid. The 2-acyloxy-4-oxo-4-arylbutyric acid is converted to an optically active 2-acyloxy-4-arylbutyric acid through catalytic reduction. The 2-acyloxy-4-arylbutyric acid is hydrolyzed in the presence of an acid or an alkali to produce an optically active 2-hydroxy-4-arylbutyric acid. The 2-hydroxy-4-arylbutyric acid is reacted with an alcohol in the presence of an acid to produce an optically active 2-hydroxy-4-arylbutyric acid ester.
    Type: Grant
    Filed: June 29, 1999
    Date of Patent: July 11, 2000
    Assignee: Ajinomoto Co., Inc.
    Inventors: Masahiko Kurauchi, Yoshimasa Hagiwara, Hiroyuki Matsueda, Takashi Nakano, Kunisuke Izawa
  • Process for producing optically active 2-hydroxy-4-arylbutyric acid or its ester
    Patent number: 5959139
    Abstract: Provided is an industrially useful process for producing an optically active 2-hydroxy-4-arylbutyric acid or its ester. An optically active acyloxysuccinic anhydride is reacted with an aromatic compound in the presence of a Lewis acid to produce an optically active 2-acyloxy-4-oxo-4-arylbutyric acid. The 2-acyloxy-4-oxo-4-arylbutyric acid is converted to an optically active 2-acyloxy-4-arylbutyric acid through catalytic reduction. The 2-acyloxy-4-arylbutyric acid is hydrolyzed in the presence of an acid or an alkali to produce an optically active 2-hydroxy-4-arylbutyric acid. The 2-hydroxy-4-arylbutyric acid is reacted with an alcohol in the presence of an acid to produce an optically active 2-hydroxy-4-arylbutyric acid ester.
    Type: Grant
    Filed: August 16, 1996
    Date of Patent: September 28, 1999
    Assignee: Ajinomoto Co., Inc.
    Inventors: Masahiko Kurauchi, Yoshimasa Hagiwara, Hiroyuki Matsueda, Takashi Nakano, Kunisuke Izawa