Inventor · disambiguated record

Kenzyu Ogiwara

Also filed as: INOUE HISAO · OGIWARA KENZYU

4 granted patents·109 citations·filing 1977–1987

78Inventor score

Technology areasF03B

Files withHITACHI LTD4

Top patents by PatentIndex Score

4 records

0191US4816696AVariable-speed pumped-storage power generating systemHITACHI LTD·Filed 1987·Granted Mar 28, 1989·79 cites·4 claims
0247US4179237AMethod for controlling the operation of a fluid machine in spinning reserveHITACHI LTD·Filed 1977·Granted Dec 18, 1979·10 cites·5 claims
0346US4468167AMethod of operating water-turbine or pump water-turbineHITACHI LTD·Filed 1981·Granted Aug 28, 1984·13 cites·8 claims
0435US4295781AMethod for operating fluid machines in spinning-in-air modeHITACHI LTD·Filed 1979·Granted Oct 20, 1981·7 cites·9 claims

Join the waitlist — get patent alerts

Get an alert when Kenzyu Ogiwara files or is granted a new patent.

We store only your email — no account needed. See our privacy policy.

Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →