JK

Junichi Koyama

PE Pentax: 1 patents #91 of 191Top 50%
HI Hitachi: 1 patents #1,533 of 3,950Top 40%
Overall (2002): #57,049 of 266,432Top 25%
2
Patents 2002

Issued Patents 2002

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6491725 Keyhole button Yukio Taniguchi, Takamitsu Yoshida, Yoshiro Imamura 2002-12-10
6335956 Fuel assembly Motoo Aoyama, Koji Nishida, Junichi Yamashita 2002-01-01