YZ

Yoshimasa Zama

NS Nippon Steel: 6 patents #412 of 4,423Top 10%
TK Toyo Boseki Kabushiki Kaisha: 2 patents #343 of 1,085Top 35%
Overall (All Time): #890,911 of 4,157,543Top 25%
6
Patents All Time

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
5288813 Viscoelastic resin composition or vibration damping material Hiroshi Hirakouchi, Masanori Nakamura, Takeshi Yatsuka, Nobuo Kadowaki, Hiroshi Endoh 1994-02-22
4859523 Viscoelastic resin for vibration damping material Hiroshi Endoh, Nobuo Kadowaki, Takeshi Yatuka, Hiroshi Nagai, Yutaka Mizumura 1989-08-22
4749623 Composite metal sheet with organic and metal intermediate layer Hiroshi Endo, Mizuo Ejima 1988-06-07
4413657 Exhaust pipe with vibration damping Takesada Sasaki, Hiroshi Endo, Masahiko Shiraishi, Yosinari Miura, Masayuki Yamaguchi 1983-11-08
4410013 Composite dual tubing Takesada Sasaki, Hiroshi Endo, Masahiko Shiraishi, Yosinari Miura, Masayuki Yamaguchi 1983-10-18
4404992 Composite dual tubing Takesada Sasaki, Hiroshi Endo, Masahiko Shiraishi, Yosinari Miura, Masayuki Yamaguchi 1983-09-20