Nobuo Sekine

Follow

Person

Nagoya-shi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Thermochromic writing instrument
- Patent number 9,266,379
- Issue date Feb 23, 2016
- The Pilot Ink Co., Ltd.
- Yoshinori Imamura
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information Patent Grant
Thermochromic writing instrument
- Patent number 9,233,574
- Issue date Jan 12, 2016
- The Pilot Ink Co., Ltd.
- Yoshinori Imamura
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information Patent Grant
Thermochromic writing instrument
- Patent number 8,322,937
- Issue date Dec 4, 2012
- The Pilot Ink Co., Ltd.
- Yoshinori Imamura
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information Patent Grant
Ballpoint pen and cap therefor
- Patent number 6,076,987
- Issue date Jun 20, 2000
- The Pilot Ink Co., Ltd.
- Nobuo Sekine
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information Patent Grant
Ballpoint pen tip, manufacturing method therefor, and ballpoint pen...
- Patent number 5,904,432
- Issue date May 18, 1999
- The Pilot Ink Co., Ltd.
- Masashi Ando
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information Patent Grant
Ballpoint pen tip
- Patent number 5,899,625
- Issue date May 4, 1999
- The Pilot Ink Co., Ltd.
- Masashi Ando
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES

Patents Applicationslast 30 patents

Information Patent Application
THERMOCHROMIC WRITING INSTRUMENT
- Publication number 20130121744
- Publication date May 16, 2013
- THE PILOT INK CO., LTD.
- Yoshinori Imamura
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information Patent Application
THERMOCHROMIC WRITING INSTRUMENT
- Publication number 20100098476
- Publication date Apr 22, 2010
- THE PILOT INK CO., LTD.
- Yoshinori Imamura
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES