Yasuo Okumura

Follow

Person

Aichi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Lubricant composition for hot plastic working
- Patent number 5,346,634
- Issue date Sep 13, 1994
- Nihon Parkerizing Co., Ltd.
- Yoshihiko Sawazaki
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Grant
Rust-preventive lubricant composition for zinc-plated steel material
- Patent number 5,221,490
- Issue date Jun 22, 1993
- NKK Corporation
- Yasuhisa Tajiri
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Grant
Coated aluminum-zinc alloy plated sheet steel
- Patent number 4,637,840
- Issue date Jan 20, 1987
- Nihon Parkerizing Co., Ltd.
- Haruki Fujii
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...