YA

Yumiko Anzai

HI Hitachi: 46 patents #351 of 28,497Top 2%
HM Hitachi Maxell: 12 patents #56 of 1,211Top 5%
HS Hitachi-Lg Data Storage: 3 patents #87 of 294Top 30%
HC Hitachi Koki Co.: 1 patents #557 of 888Top 65%
MA Maxell: 1 patents #286 of 437Top 70%
NC Nippon Columbia Co.: 1 patents #15 of 66Top 25%
HH Hitachi High-Technologies: 1 patents #674 of 1,200Top 60%
Overall (All Time): #49,059 of 4,157,543Top 2%
53
Patents All Time

Issued Patents All Time

Showing 26–50 of 53 patents

Patent #TitleCo-InventorsDate
7041430 Information recording media, manufacturing technique and information recording method Makoto Miyamoto, Akemi Hirotsune, Toshimichi Shintani, Takahiro Kurokawa, Keikichi Andoo 2006-05-09
7042823 Information recording method and apparatus with suppressed mark edge jitters Makoto Miyamoto, Tsuyoshi Toda, Masatoshi Ohtake, Motoyasu Terao, Junko Ushiyama +4 more 2006-05-09
7012871 Information recording method and apparatus with suppressed mark edge jitters Makoto Miyamoto, Tsuyoshi Toda, Masatoshi Ohtake, Motoyasu Terao, Junko Ushiyama +4 more 2006-03-14
6954941 Information recording medium and information recording device Makoto Miyamoto, Junko Ushiyama, Keikichi Ando, Akemi Hirotsune, Motoyasu Terao +3 more 2005-10-11
6854126 Information recording medium with SiO2-In2O3-SnO2-ZnS protective layer Akemi Hirotsune, Motoyasu Terao 2005-02-08
6842415 Information recording method and apparatus with suppressed mark edge jitters Makoto Miyamoto, Tsuyoshi Toda, Masatoshi Ohtake, Motoyasu Terao, Junko Ushiyama +4 more 2005-01-11
6806030 Information recording medium and method for manufacturing information recording medium Motoyasu Terao, Makoto Miyamoto, Yasushi Miyauchi, Keikichi Ando, Junko Ushiyama +3 more 2004-10-19
6740382 Information recording medium Makoto Miyamoto, Akemi Hirotsune, Keikichi Andoo, Tetsuya Nishida, Motoyasu Terao +1 more 2004-05-25
6723411 Information recording medium and method for manufacturing an information recording medium Akemi Hirotsune, Makoto Miyamoto, Toshimichi Shintani, Keikichi Andoo, Takahiro Kurokawa 2004-04-20
6709801 Information recording medium Makoto Miyamoto, Yoshihiro Ikari, Tamotsu Fuchioka, Hitoshi Watanabe, Reiji Tamura +2 more 2004-03-23
6703098 Information recording medium and method for manufacturing information recording medium Akemi Hirotsune, Motoyasu Terao, Junko Ushiyama, Hiroyuki Minemura, Keikichi Andoo +1 more 2004-03-09
6659759 Apparatus for the production of a recording medium Motoyasu Terao 2003-12-09
6636477 Information recording medium and information recording device Makoto Miyamoto, Junko Ushiyama, Keikichi Ando, Akemi Hirotsune, Motoyasu Terao +3 more 2003-10-21
6608806 Information recording method and apparatus with suppressed mark edge jitters Makoto Miyamoto, Tsuyoshi Toda, Masatoshi Ohtake, Motoyasu Terao, Junko Ushiyama +4 more 2003-08-19
6532034 Optical disk, optical disk apparatus, and method for writing figures Akemi Hirotsune, Yoshiko Nishi 2003-03-11
6529467 Information recording method and apparatus with suppressed mark edge jitters Makoto Miyamoto, Tsuyoshi Toda, Masatoshi Ohtake, Motoyasu Terao, Junko Ushiyama +4 more 2003-03-04
6485808 Method of manufacturing an optical disk substrate, an apparatus of manufacturing an optical disk and an optical disk substrate Motoyasu Terao, Tetsuya Nishida, Mokoto Miyamoto 2002-11-26
6436504 Information recording medium Makoto Miyamoto, Akemi Hirotsune, Keikichi Andoo, Tetsuya Nishida, Motoyasu Terao +1 more 2002-08-20
6343056 Information recording method and apparatus with suppressed mark edge jitters Makoto Miyamoto, Tsuyoshi Toda, Masatoshi Ohtake, Motoyasu Terao, Junko Ushiyama +4 more 2002-01-29
6312779 Information recording medium and information recording/reproducing apparatus Akemi Hirotsune, Makoto Miyamoto, Keikichi Andoo, Junko Ushiyama, Hisae Wakabayashi +2 more 2001-11-06
6236635 Information recording method and apparatus with suppressed mark edge jitters Makoto Miyamoto, Tsuyoshi Toda, Masatoshi Ohtake, Motoyasu Terao, Junko Ushiyama +4 more 2001-05-22
6231945 Information recording medium Makoto Miyamoto, Akemi Hirotsune, Keikichi Andoo, Tetsuya Nishida, Motoyasu Terao +1 more 2001-05-15
5871881 Multilayer optical information medium Tetsuya Nishida, Kenchi Ito, Yoshito Tsunoda, Masahiko Takahashi, Hisae Sasaki +1 more 1999-02-16
5753413 Rewritable medium for recording information in which the atomic arrangement is changed without the shape being changed and the optical constant is changed Tetsuya Nishida 1998-05-19
5411430 Scanning optical device and method for making a hybrid scanning lens used therefor Takashi Nishimura, Akira Arimoto, Yoshinori Miyamura, Yoshimasa Kondo, Fumihiko Uchida +1 more 1995-05-02