Tatsuya Nagahama

Follow

Person

Tokyo, JA

People

Patents Grantslast 30 patents

Information Patent Grant
Method for separating large-sized film-like plastics
- Patent number 4,046,677
- Issue date Sep 6, 1977
- Mitsui Mining & Smelting Co., Ltd.
- Kozo Saitoh
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL