HY

Hisao Yoshikawa

CC Citizen Watch Co.: 2 patents #460 of 1,225Top 40%
Overall (All Time): #2,354,571 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4536993 Grinding machine Masami Shimizu, Sosaku Kimura, Kazuo Shiba, Fumio Maeno, Shigehiro Fuwa +1 more 1985-08-27
4481742 Machine tool elevating and guiding apparatus Masami Shimizu, Sosaku Kimura, Kazuo Shiba, Fumio Maeno, Shigehiro Fuwa +1 more 1984-11-13