Inventor

WATANABE SHUNJIRO

JP4 patents

⚠️ This page may combine multiple inventors who share the name “WATANABE SHUNJIRO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

INST TECH PRECISION ELECT

3 patents

US7588801B2Sep 15, 2009

Chromium-free rust inhibitive treatment method for metal products having zinc surface and metal products treated thereby

INST TECH PRECISION ELECT7 citations67

US8623503B2Jan 7, 2014

Chromium-free rust-inhibitive surface treatment agent for metal parts with zinc surfaces and metal parts with zinc surfaces coated with rust-inhibitive surface coated film

INST TECH PRECISION ELECT0 citations44

US8367201B2Feb 5, 2013

Chromium-free rust-inhibitive surface treatment agent for metal parts with zinc surfaces and metal parts with zinc surfaces coated with rust-inhibitive surface coated film

INST TECH PRECISION ELECT0 citations44

COMS CORP

1 patent

US6332615B1Dec 25, 2001

Set of cards used for playing a card game simulating fishing

COMS CORP15 citations74