HK

Haruhiko Kitagawa

Sumitomo Electric Industries: 2 patents #9,741 of 21,551Top 50%
📍 Okayama, JP: #543 of 1,590 inventorsTop 35%
Overall (All Time): #2,347,849 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4584916 Lead face machining apparatus Mamoru Inoue, Morimichi Hasegawa, Shozi Hara, Kiyokazu Imanishi, Yoshiyuki Kubota 1986-04-29
4459627 Method of producing a tape guide device of a rotary head type video tape recorder and the product thereof Hiroyuki Ito, Takashi Ichiyanagi, Kiyokazu Imanishi 1984-07-10