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USPTO Patent Rankings Data through Dec 31, 2025
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Hirofumi Tsujimura — 4 Patents

ANAnritsu: 2 patents #192 of 633Top 35%
Hitachi: 2 patents #13,405 of 28,497Top 50%
Yokohama, JP: #18,990 of 49,234 inventorsTop 40%
Overall (All Time): #1,080,739 of 4,157,543Top 30%
4 Patents All Time
Hirofumi Tsujimura has been granted 4 US patents while listed as an inventor at Anritsu. The first was granted in 1998 and the most recent in May 2018. Hirofumi Tsujimura ranks #1,080,739 of 4,157,543 US inventors in our database (top 26.0%). Patent records list Hirofumi Tsujimura in Yokohama, JP.

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
9986449 Mobile terminal test device and method Toshiya Otowa, Naofumi Naruse 2018-05-29
9226324 Mobile terminal test device and method Toshiya Otowa, Naofumi Naruse 2015-12-29
6088825 Error correcting apparatus with error correction unit carrying out first error correction and CPU configured to carry out second error correction Makoto Ikushima, Shinji Otsuka, Tamotsu Ito 2000-07-11 $481,000
5768502 Error correcting apparatus for detecting and correcting errors in data accessed from a storage medium Makoto Ikushima, Shinji Otsuka, Tamotsu Ito 1998-06-16 $146,000