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USPTO Patent Rankings Data through Sept 30, 2025
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Stephen M. Masutani — 2 Patents

Hitachi: 2 patents #13,388 of 28,497Top 50%
Hitachinaka, HI: #1 of 1 inventorsTop 100%
Overall (All Time): #2,317,070 of 4,157,543Top 60%
2 Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5038558 Gas turbine combustor and a method of combustion thereby Kenichi Sohma, Shigeru Azuhata, Yasuo Iwai, Tooru Inada, Hironobu Kobayashi +5 more 1991-08-13
5022849 Low NOx burning method and low NOx burner apparatus Yasuo Yoshii, Shigeru Azuhata, Norio Arashi, Kenichi Sohma, Tooru Inada +7 more 1991-06-11