Tadashi Nagano

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Tokyo, JA

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Patents Grantslast 30 patents

Information Patent Grant
Delignification of cellulosic material with an alkaline aqueous med...
- Patent number 4,089,737
- Issue date May 16, 1978
- Toyo Pulp Company, Ltd.
- Tadashi Nagano
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Process for the manufacture of pulp using sodium carbonate and oxygen
- Patent number 4,045,279
- Issue date Aug 30, 1977
- Toyo Pulp Co., Ltd.
- Tadashi Nagano
Information Patent Grant
Method of recovering sodium hydroxide from sulfur free pulping or b...
- Patent number 4,000,264
- Issue date Dec 28, 1976
- Toyo Pulp Co., Ltd.
- Tadashi Nagano
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE