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USPTO Patent Rankings Data through Sept 30, 2025
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Chiyo Ohno

Hitachi: 3 patents #67 of 1,165Top 6%
Overall (2021): #87,503 of 548,734Top 20%
3 Patents 2021

Issued Patents 2021

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
11169764 Remote work-support system Naohito Ikeda, Toshiki Ishii, Satoshi Ouchi, Taku Hoshizawa 2021-11-09
11137600 Display device, display control method, and display system Koji Yamasaki, Shoji Yamamoto 2021-10-05
10992909 Video recording device and head mounted display Shoji Yamamoto, Koji Yamasaki 2021-04-27