Keiichi Takahashi

Person

Ichikawa, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Method for producing a double-walled paper container
- Patent number 4,325,905
- Issue date Apr 20, 1982
- Tokan Kogyo Co., Ltd.
- Keiichi Takahashi
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Process for making a container cover member having synthetic resin...
- Patent number 4,309,952
- Issue date Jan 12, 1982
- Tokan Kogyo Co., Ltd.
- Keiichi Takahashi
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Container cover member having synthetic resin openable portion
- Patent number 4,244,491
- Issue date Jan 13, 1981
- Tokan Kogyo Co., Ltd.
- Keiichi Takahashi
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Process for producing thermoplastic multi-walled pipes
- Patent number 4,236,953
- Issue date Dec 2, 1980
- Tokan Kogyo Co., Ltd.
- Keiichi Takahashi
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Thermoplastic multi-walled pipes
- Patent number 4,157,194
- Issue date Jun 5, 1979
- Tokan Kogyo Co., Ltd.
- Keiichi Takahashi
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Container cover member having synthetic resin openable portion and...
- Patent number 4,155,481
- Issue date May 22, 1979
- Tokan Kogyo Co., Ltd.
- Keiichi Takahashi
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL

Keiichi Takahashi

Person

Patents Grantslast 30 patents

Method for producing a double-walled paper container

Process for making a container cover member having synthetic resin...

Container cover member having synthetic resin openable portion

Process for producing thermoplastic multi-walled pipes

Thermoplastic multi-walled pipes

Container cover member having synthetic resin openable portion and...