Yujiro Umezawa

Person

Higashimurayama, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Heavy duty pneumatic tires with reduced belt weight
- Patent number 5,647,928
- Issue date Jul 15, 1997
- Bridgestone Corporation
- Yujiro Umezawa
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Steel cords for rubber reinforcement and pneumatic radial tires usi...
- Patent number 5,526,864
- Issue date Jun 18, 1996
- Bridgestone Corporation
- Yoshinori Kuriya
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Heavy duty pneumatic tires with reduced belt weight
- Patent number 5,520,233
- Issue date May 28, 1996
- Bridgestone Corporation
- Yujiro Umezawa
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Steel cords for rubber reinforcement and pneumatic radial tires usi...
- Patent number 5,400,580
- Issue date Mar 28, 1995
- Bridgestone Corporation
- Yoshinori Kuriya
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Pneumatic tire with steel cords having a closed twisted structure o...
- Patent number 5,050,657
- Issue date Sep 24, 1991
- Bridgestone Corporation
- Yujiro Umezawa
- D07 - ROPES CABLES OTHER THAN ELECTRIC
Information Patent Grant
Heavy duty radial tires with metallic carcass ply
- Patent number 4,966,216
- Issue date Oct 30, 1990
- Bridgestone Corporation
- Kiyohito Kawasaki
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Steel cords for the reinforcement of rubber articles
- Patent number 4,917,165
- Issue date Apr 17, 1990
- Bridgestone Corporation
- Yujiro Umezawa
- D07 - ROPES CABLES OTHER THAN ELECTRIC
Information Patent Grant
Steel cords for the reinforcement of rubber articles
- Patent number 4,788,815
- Issue date Dec 6, 1988
- Bridgestone Corporation
- Yujiro Umezawa
- D07 - ROPES CABLES OTHER THAN ELECTRIC
Information Patent Grant
Steel cords for the reinforcement of rubber articles
- Patent number 4,707,975
- Issue date Nov 24, 1987
- Bridgestone Corporation
- Yujiro Umezawa
- D07 - ROPES CABLES OTHER THAN ELECTRIC
Information Patent Grant
Pneumatic radial tires
- Patent number 4,572,264
- Issue date Feb 25, 1986
- Bridgestone Tire Co., Ltd.
- Yujiro Umezawa
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Pneumatic radial tires
- Patent number 4,488,587
- Issue date Dec 18, 1984
- Bridgestone Tire Company Limited
- Yujiro Umezawa
- B60 - VEHICLES IN GENERAL

Patents Applicationslast 30 patents

Information Patent Application
WORKPIECE GRINDING METHOD
- Publication number 20250010430
- Publication date Jan 9, 2025
- Disco Corporation
- Yujiro UMEZAWA
- B24 - GRINDING POLISHING
Information Patent Application
GRINDING WHEEL AND GRINDING METHOD
- Publication number 20240198489
- Publication date Jun 20, 2024
- Disco Corporation
- Yujiro UMEZAWA
- B24 - GRINDING POLISHING

Yujiro Umezawa

Person

Patents Grantslast 30 patents

Heavy duty pneumatic tires with reduced belt weight

Steel cords for rubber reinforcement and pneumatic radial tires usi...

Heavy duty pneumatic tires with reduced belt weight

Steel cords for rubber reinforcement and pneumatic radial tires usi...

Pneumatic tire with steel cords having a closed twisted structure o...

Heavy duty radial tires with metallic carcass ply

Steel cords for the reinforcement of rubber articles

Steel cords for the reinforcement of rubber articles

Steel cords for the reinforcement of rubber articles

Pneumatic radial tires

Pneumatic radial tires

Patents Applicationslast 30 patents

WORKPIECE GRINDING METHOD

GRINDING WHEEL AND GRINDING METHOD