Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
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Ryosuke Tatsumi — 37 Patents

Hitachi: 31 patents #867 of 28,497Top 4%
AEAlpine Electronics: 2 patents #159 of 637Top 25%
HVHitachi Vantara: 2 patents #38 of 254Top 15%
JMJx Nippon Mining & Metals: 2 patents #117 of 262Top 45%
Overall (All Time): #88,583 of 4,157,543Top 3%
37 Patents All Time

Issued Patents All Time

Showing 26–37 of 37 patents

Patent #TitleCo-InventorsDate
11201788 Distributed computing system and resource allocation method Akira Yamamoto, Shugo Ogawa, Yoshinori Ohira, Koji Hosogi 2021-12-14
11093134 Storage device, management method, and program in tiered storage system Kazuki Matsugami, Tomohiro Yoshihara 2021-08-17
11086562 Computer system having data amount reduction function and storage control method Tomohiro Yoshihara 2021-08-10
11080192 Storage system and storage control method Shintaro Ito, Masakuni Agetsuma 2021-08-03
10936518 Storage system, data management method, and data management program Yuto KAMO, Tomohiro Yoshihara, Takashi Nagao 2021-03-02
10884924 Storage system and data writing control method Shintaro Ito, Akira Yamamoto, Takanobu Suzuki 2021-01-05
10739999 Computer system having data amount reduction function and storage control method Yoshihiro Yoshii 2020-08-11
10589669 Following vehicle detection and alarm device Kousuke Mitani, Tetsu Kanamori 2020-03-17
10460703 Display control apparatus, display control method, and camera monitoring system Yoshihiro Katsuyama 2019-10-29
10392679 Method for recovering gold from activated carbon Kazuhiro Hatano, Akira Yoshimura 2019-08-27
10301180 Activated carbon regeneration method and gold recovery method Kazuhiro Hatano, Akira Yoshimura 2019-05-28
9977813 Storage device and data migration method Tadato Nishina, Norio Shimozono 2018-05-22