Patents/Inventors

Takamasa Kawai

TokyoJP8 patents

6 Patents

US125530052026
Agent for Forming Solid Lubricating Coating Film, Oil Country Tubular Goods, and Threaded Joint for Oil Country Tubular Goods
TOYO DRILUBE CO., Ltd.
0 cites
US125104432025
Make-up/break-out Evaluation Method for Threaded Joint for Oil Country Tubular Goods
JFE STEEL CORPORATION
0 cites
US124485812025
Agent, Oil Country Tubular Goods, and Threaded Joint for Oil Country Tubular Goods
TOYO DRILUBE CO., Ltd.
0 cites
US123125522025
Agent for Forming Solid Lubricating Coating Film, Oil Country Tubular Goods, Threaded Joint for Oil Country Tubular Goods, and Method for Manufacturing Oil Country Tubular Goods
TOYO DRILUBE CO., Ltd.
0 cites
US119057652024
Threaded Joint for Pipes
JFE STEEL CORPORATION
0 cites
US115496202023
Screw Joint for Oil Well Pipe
JFE STEEL CORPORATION
0 cites