YM

Yasumasa Matsuda

HI Hitachi: 28 patents #1,022 of 28,497Top 4%
HC Hitachi Koki Co.: 8 patents #145 of 888Top 20%
HS Hitachi Seiko: 4 patents #5 of 106Top 5%
📍 Ibaraki, JP: #227 of 6,779 inventorsTop 4%
Overall (All Time): #140,270 of 4,157,543Top 4%
28
Patents All Time

Issued Patents All Time

Showing 1–25 of 28 patents

Patent #TitleCo-InventorsDate
6094186 Document format setting method and apparatus Masayoshi Kuroda, Hiroyuki Kumai, Yasuhiko Kasai, Kiyoshi Masuda, Akihiro Kaneko +1 more 2000-07-25
5864808 Erroneous input processing method and apparatus in information processing system using composite input Haru Ando, Hideaki Kikuchi, Nobuo Hataoka, Shigeto Oheda, Tsukasa Hasegawa 1999-01-26
5852447 Character and figure transforming system Rituko Hosoya, Tsukasa Yamauchi 1998-12-22
5781731 Schedule management support system Hiroyuki Koreeda, Yasuhiko Kasai, Tsukasa Yamauchi, Hajime Asuma, Shigeto Oeda +8 more 1998-07-14
5684970 Icon menu display apparatus and icon menu display method Hajime Asuma, Tsukasa Hasegawa, Akira Naito, Yasuhiko Kasai, Tomoko Tsuchiya +1 more 1997-11-04
5634134 Method and apparatus for determining character and character mode for multi-lingual keyboard based on input characters Hiroyuki Kumai, Jun Ito, Akira Nakajima, Shigeki Taniguchi, Hirobumi Kashiwa +2 more 1997-05-27
5621438 Pointing information processing apparatus with pointing function Toshio Kamimura, Michihiro Mese, Shigeto Oeda, Kazuhide Nishiyama 1997-04-15
5612720 Systems for processing information and identifying individual Jun Ito, Hiroyuki Kumai, Akira Nakajima, Yoshiisa Inoue, Hiroyuki Koreeda +1 more 1997-03-18
5592605 Menu picture display method and apparatus for a data processor Hajime Asuma, Tsukasa Hasegawa, Akira Naito, Yasuhiko Kasai, Tomoko Tsuchiya +1 more 1997-01-07
5539868 Character and figure transferring system Rituko Hosoya, Tsukasa Yamauchi 1996-07-23
5535119 Character inputting method allowing input of a plurality of different types of character species, and information processing equipment adopting the same Jun Ito, Hiroyuki Kumai, Akira Nakajima, Shigeki Taniguchi, Hirobumi Kashiwa +3 more 1996-07-09
5453762 Systems for processing information and identifying individual Jun Ito, Hiroyuki Kumai, Akira Nakajima, Yoshiisa Inoue, Hiroyuki Koreeda +1 more 1995-09-26
5309549 Method for and apparatus for synthesizing and filling in figures having contours Tetsuo Iwamoto, Akira Nakajima, Sayuri Oshima 1994-05-03
5302969 Document format setting method and apparatus Masayoshi Kuroda, Hiroyuki Kumai, Yasuhiko Kasai, Kiyoshi Masuda, Akihiro Kaneko +1 more 1994-04-12
5289568 Apparatus and method for drawing figures Rituko Hosoya, Akira Nakajima, Toshiharu Kawasaki 1994-02-22
5247610 Method and apparatus for generating graphics Sayuri Oshima, Akira Nakajima, Akira Naito, Hirohide Endo, Michihiro Mese +5 more 1993-09-21
5012353 Apparatus for reading original Eiji Yoshino, Takahiro Yamada 1991-04-30
4849909 Ink-jet recording device Takahiro Yamada, Eiji Yoshino 1989-07-18
4746928 Micro-dot ink jet recorder Takahiro Yamada, Makoto Yoshino, Masatoshi Sakata 1988-05-24
4672398 Ink droplet expelling apparatus Tadashi Kuwabara, Masatoshi Kasahara, Kyoji Mukumoto, Kazuyoshi Tokunaga 1987-06-09
4670761 Ink-jet recording apparatus Eiji Yoshino, Takahiro Yamada 1987-06-02
4638326 Ink jet recording apparatus Takahiro Yamada, Satoshi Namekawa, Eiji Yoshino 1987-01-20
4618868 Ink jet recording apparatus Takahiro Yamada, Satoshi Namekawa, Eiji Yoshino 1986-10-21
4424520 Ink jet printing apparatus Syoji Sagae, Masatoshi Kasahara 1984-01-03
4393388 Liquid droplet projection apparatus Kyoji Mukumoto, Syoji Sagae, Masatoshi Kasahara 1983-07-12