Youji Takeuchi

Follow

Person

Kanagawa, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Ink for ball-point pen and ball-point pen
- Patent number 6,827,767
- Issue date Dec 7, 2004
- Mitsubishi Pencil Kabushikikaisha
- Masaru Miyamoto
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Ink for ball pen and ball pen
- Patent number 6,818,047
- Issue date Nov 16, 2004
- Mitsubishi Pencil Kabushikikaisha
- Masaru Miyamoto
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information Patent Grant
Method for manufacturing ink follower for water base ballpoint pens
- Patent number 6,391,927
- Issue date May 21, 2002
- Mitsubishi Pencil Kabushikikaisha
- Norio Ogura
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information Patent Grant
Ink follower for water-base ballpoint pens and method of manufactur...
- Patent number 6,376,560
- Issue date Apr 23, 2002
- Mitsubishi Pencil Kabushikikaisha
- Norio Ogura
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information Patent Grant
Method of manufacturing ink follower for water-base ballpoint pens
- Patent number 6,227,738
- Issue date May 8, 2001
- Mitsubishi Pencil Kabushikikaisha
- Norio Ogura
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES

Patents Applicationslast 30 patents

Information Patent Application
Ink for ball-point pen and ball-point pen
- Publication number 20030005855
- Publication date Jan 9, 2003
- Masaru Miyamoto
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
Ink for ball pen and ball pen
- Publication number 20030005854
- Publication date Jan 9, 2003
- Masaru Miyamoto
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES