TN

Teruo Nagasawa

HI Hitachi: 14 patents #2,889 of 28,497Top 15%
HC Hitachi Information Technology Co.: 1 patents #20 of 121Top 20%
HC Hitachi Software Engineering Co.: 1 patents #175 of 502Top 35%
Overall (All Time): #355,497 of 4,157,543Top 9%
14
Patents All Time

Issued Patents All Time

Showing 1–14 of 14 patents

Patent #TitleCo-InventorsDate
7213114 Remote copy for a storage controller in a heterogeneous environment Toshio Nakano, Katsunori Nakamura, Mikito Ogata, Yoshinori Okami, Seiichi Higaki +3 more 2007-05-01
7200729 Subsystem replacement method Takeshi Koide, Katsunori Nakamura 2007-04-03
7114049 Adaptive remote copy in a heterogeneous environment Kyosuke Achiwa, Takashi Oeda, Katsunori Nakamura, Takeshi Koide 2006-09-26
7069403 Method and apparatus for data duplexing in storage unit system Tooru Suzuki, Katsunori Nakamura, Takahisa Kimura, Takeshi Koide 2006-06-27
6988176 Method and apparatus for data duplexing in storage unit system Tooru Suzuki, Katsunori Nakamura, Takahisa Kimura, Takeshi Koide 2006-01-17
6950917 Subsystem replacement method Takeshi Koide, Katsunori Nakamura 2005-09-27
6845435 Data backup in presence of pending hazard Takahisa Kimura, Takeshi Koide 2005-01-18
6684306 Data backup in presence of pending hazard Takahisa Kimura, Takeshi Koide 2004-01-27
6665781 Method and apparatus for data duplexing in storage unit system Tooru Suzuki, Katsunori Nakamura, Takahisa Kimura, Takeshi Koide 2003-12-16
6647476 Subsystem replacement method Takeshi Koide, Katsunori Nakamura 2003-11-11
6584473 Information storage system Takahisa Kimura, Takeshi Koide, Yasushi Saitsu 2003-06-24
6240494 Subsystem replacement method Takeshi Koide, Katsunori Nakamura 2001-05-29
5475859 Disk cache unit having reduced waiting times for data transfer Kosaku Kamabayashi, Katsunori Nakamura, Takao Satoh 1995-12-12
5369751 Disk cache control unit Kosaku Kambayashi, Katsunori Nakamura, Takao Satoh, Yoshihiro Asaka 1994-11-29