Membership
Tour
Register
Log in
Koji Iwaya
Follow
Person
Kitakyushu-shi, JP
People
Overview
Industries
Organizations
People
Information
Impact
Patents Grants
last 30 patents
Information
Patent Grant
Hollow spring utilizing seamless steel pipe
Patent number
10,118,208
Issue date
Nov 6, 2018
SHINKO METAL PRODUCTS CO., LTD.
Kotaro Toyotake
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Process for manufacturing seamless steel pipe, hollow spring utiliz...
Patent number
9,482,302
Issue date
Nov 1, 2016
SHINKO METAL PRODUCTS CO., LTD.
Kotaro Toyotake
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Patents Applications
last 30 patents
Information
Patent Application
HOLLOW SPRING UTILIZING SEAMLESS STEEL PIPE
Publication number
20140346721
Publication date
Nov 27, 2014
Kotaro TOYOTAKE
C21 - METALLURGY OF IRON
Information
Patent Application
PROCESS FOR MANUFACTURING SEAMLESS STEEL PIPE, HOLLOW SPRING UTILIZ...
Publication number
20130239637
Publication date
Sep 19, 2013
NHK Spring Co., Ltd.
Kotaro TOYOTAKE
C21 - METALLURGY OF IRON
Information
Patent Application
SEAMLESS STEEL PIPE, HOLLOW SPRING UTILIZING SEAMLESS STEEL PIPE, A...
Publication number
20100037976
Publication date
Feb 18, 2010
Shinko Products Co., Ltd.
Kotaro Toyotake
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...