Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Daisuke Isobe — 7 Patents

Hitachi: 6 patents #6,585 of 28,497Top 25%
FCFuji Electric Co.: 1 patents #1,387 of 2,643Top 55%
Odawara, JP: #487 of 1,597 inventorsTop 35%
Overall (All Time): #680,018 of 4,157,543Top 20%
7 Patents All Time
Daisuke Isobe has been granted 7 US patents while listed as an inventor at Hitachi. The first was granted in 2005 and the most recent in June 2024. Daisuke Isobe ranks #680,018 of 4,157,543 US inventors in our database (top 16.4%). Patent records list Daisuke Isobe in Odawara, JP.

Patents per Year

Patents granted per year, 2005 to 2024Bar chart with a peak of 2 patents in 2011.peak 22005: 1 patents20052008: 1 patents20082011: 2 patents20112012: 1 patents20122016: 1 patents20162024: 1 patents2024

Issued Patents All Time

Showing 1–7 of 7 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
12009808 Semiconductor device 2024-06-11
9342521 Storage system, storage controller and data compression method 2016-05-17
8161221 Storage system provided with function for detecting write completion Suguru Shimotaya, Susumu Tsuruta 2012-04-17 $96,000
7966296 Storage system, storage controller and data compression method 2011-06-21 $137,000
7953904 Storage control apparatus having power saving controller which stops particular data transfers based on connection and data transfer rates Masateru Hemmi, Susumu Tsuruta 2011-05-31 $122,000
7441130 Storage controller and storage system Azuma Kano, Takahiko Iwasaki, Tsuyoshi Sasagawa, Midori Kurokawa 2008-10-21 $114,000
6970974 Method for managing disk drives of different types in disk array device Azuma Kano, Akihisa Hirasawa, Shingo Itagaki, Kenichi Tateyama, Yoshinori Nagaiwa +1 more 2005-11-29 $191,000