Yoshihiro Koyanagi

Person

Osaka, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Bag with a filtering check valve
- Patent number 5,388,910
- Issue date Feb 14, 1995
- Kabushikikaisha Kashiwaraseitai
- Yoshihiro Koyanagi
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Check valve
- Patent number 5,209,264
- Issue date May 11, 1993
- Yoshihiro Koyanagi
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

Information Patent Application
Mounting structure of open/close valve in sealed body and device fo...
- Publication number 20070006443
- Publication date Jan 11, 2007
- Yoshihiro Koyanagi
- B31 - MAKING ARTICLES OF PAPER OR CARDBOARD WORKING PAPER OR CARDBOARD
Information Patent Application
Structure of fluid container and method and apparatus for producing...
- Publication number 20050244527
- Publication date Nov 3, 2005
- Yoshihiro Koyanagi
- B31 - MAKING ARTICLES OF PAPER OR CARDBOARD WORKING PAPER OR CARDBOARD
Information Patent Application
Structure of fluid container and method and apparatus for producing...
- Publication number 20050229537
- Publication date Oct 20, 2005
- Yoshihiro Koyanagi
- B31 - MAKING ARTICLES OF PAPER OR CARDBOARD WORKING PAPER OR CARDBOARD
Information Patent Application
Evacuable valve, evacuable bag, and production process thereof
- Publication number 20050190995
- Publication date Sep 1, 2005
- Yoshihiro Koyanagi
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Application
Mounting structure of open/close valve in sealed body and device fo...
- Publication number 20050109411
- Publication date May 26, 2005
- Yoshihiro Koyanagi
- B31 - MAKING ARTICLES OF PAPER OR CARDBOARD WORKING PAPER OR CARDBOARD
Information Patent Application
Air-filling cushioning material and method for manufacturing the same
- Publication number 20050013974
- Publication date Jan 20, 2005
- Yoshihiro Koyanagi
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Application
Structure of fluid container and method and apparatus for producing...
- Publication number 20040265523
- Publication date Dec 30, 2004
- Yoshihiro Koyanagi
- B31 - MAKING ARTICLES OF PAPER OR CARDBOARD WORKING PAPER OR CARDBOARD
Information Patent Application
Evacuable bag
- Publication number 20040114837
- Publication date Jun 17, 2004
- Yoshihiro Koyanagi
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Application
Shut-off valve
- Publication number 20020134435
- Publication date Sep 26, 2002
- Yoshihiro Koyanagi
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
Compression sack
- Publication number 20020044702
- Publication date Apr 18, 2002
- Yoshihiro Koyanagi
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL

Yoshihiro Koyanagi

Person

Patents Grantslast 30 patents

Bag with a filtering check valve

Check valve

Patents Applicationslast 30 patents

Mounting structure of open/close valve in sealed body and device fo...

Structure of fluid container and method and apparatus for producing...

Structure of fluid container and method and apparatus for producing...

Evacuable valve, evacuable bag, and production process thereof

Mounting structure of open/close valve in sealed body and device fo...

Air-filling cushioning material and method for manufacturing the same

Structure of fluid container and method and apparatus for producing...

Evacuable bag

Shut-off valve

Compression sack