Inventor · disambiguated record

Koji Hisanaga

Also filed as: HISANAGA KOJI

2 granted patents·69 citations·filing 1991–1998

66Inventor score

Technology areasH02M

Files withNEC CORP2

Top patents by PatentIndex Score

2 records

0160US5267133ASwitching power sourceNEC CORP·Filed 1991·Granted Nov 30, 1993·38 cites·3 claims
0256US5886880APower circuit for transferring energy by alternately switching winding circuits of a transformer at high speedNEC CORP·Filed 1998·Granted Mar 23, 1999·31 cites·5 claims

Join the waitlist — get patent alerts

Get an alert when Koji Hisanaga 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 →