AH

Akemi Hirotsune

HI Hitachi: 64 patents #141 of 28,497Top 1%
HM Hitachi Maxell: 26 patents #11 of 1,211Top 1%
HB Hgst Netherlands, B.V.: 4 patents #198 of 972Top 25%
HC Hitachi Consumer Electronics Co.: 1 patents #206 of 447Top 50%
WT Western Digital Technologies: 1 patents #1,787 of 3,180Top 60%
Overall (All Time): #29,480 of 4,157,543Top 1%
70
Patents All Time

Issued Patents All Time

Showing 51–70 of 70 patents

Patent #TitleCo-InventorsDate
6411591 Optical recording medium and optical memory device Koichi Moritani, Motoyasu Terao, Yasushi Miyauchi, Toshimichi Shintani, Takashi Naito +2 more 2002-06-25
6383595 Information recording medium Motoyasu Terao, Makoto Miyamoto, Yasushi Miyauchi, Tetsuya Nishida, Keikichi Ando +5 more 2002-05-07
6385153 Information recording medium, information recording method and information recording apparatus Yasushi Miyauchi, Motoyasu Terao, Hiroyuki Minemura, Harukazu Miyamoto 2002-05-07
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
6340555 Information recording medium and information recording and reproducing apparatus using the same Makoto Miyamoto, Motoyasu Terao, Yukio Fukui, Nobuhiro Tokushuku, Keikichi Andoo +3 more 2002-01-22
6317408 Optical storage medium having information of dummy data at leading side or trailing side of user data Yasushi Miyauchi, Motoyasu Terao, Hiroyuki Minemura, Harukazu Miyamoto 2001-11-13
6312779 Information recording medium and information recording/reproducing apparatus Makoto Miyamoto, Keikichi Andoo, Junko Ushiyama, Yumiko Anzai, 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
6232035 Information recording medium and information memory apparatus Motoyasu Terao, Yasushi Miyauchi 2001-05-15
6231945 Information recording medium Makoto Miyamoto, Keikichi Andoo, Tetsuya Nishida, Motoyasu Terao, Junko Ushiyama +1 more 2001-05-15
6132932 Information recording medium and information recording and reproducing apparatus using the same Makoto Miyamoto, Motoyasu Terao, Yukio Fukui, Nobuhiro Tokushuku, Keikichi Andoo +3 more 2000-10-17
6111850 Optical recording method for recording dummy data at leading and trailing sides of user data Yasushi Miyauchi, Motoyasu Terao, Hiroyuki Minemura, Harukazu Miyamoto 2000-08-29
5974023 Information recording medium, information recording method and information recording apparatus Yasushi Miyauchi, Motoyasu Terao, Hiroyuki Minemura, Harukazu Miyamoto 1999-10-26
5958649 Information recording medium and information memory apparatus Motoyasu Terao, Yasushi Miyauchi 1999-09-28
5912104 Information recording medium Motoyasu Terao, Yasushi Miyauchi 1999-06-15
5882759 Information recording medium and information memory storage Motoyasu Terao, Yasushi Miyauchi, Makoto Miyamoto 1999-03-16
5878021 Information recording medium, information recording method and information recording apparatus Yasushi Miyauchi, Motoyasu Terao, Hiroyuki Minemura, Harukazu Miyamoto 1999-03-02
5846625 Optical recording medium and information processing apparatus used therefor Motoyasu Terao, Tetsuya Nishida, Yasushi Miyauchi 1998-12-08
5709978 Supperresolution readout thin film and information recording medium Motoyasu Terao, Yasushi Miyauchi 1998-01-20
5703867 Optical recording medium having a dummy area at leading and/or trailing positions of recording area Yasushi Miyauchi, Motoyasu Terao, Hiroyuki Minemura, Harukazu Miyamoto 1997-12-30