HH

Hiroshi Hasegawa

NK Nippon Kogaku K.K.: 3 patents #8 of 82Top 10%
📍 Tokyo, CA: #7 of 53 inventorsTop 15%
Overall (1982): #4,795 of 81,411Top 6%
3
Patents 1982

Issued Patents 1982

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
4359275 Single lens reflex camera system capable of TTL flash output control 1982-11-16
4354750 Flash unit having a flash output control device Osamu Maida 1982-10-19
4351600 Flash output control failure warning device of an automatic flash output control speed light Osamu Maida 1982-09-28