Shingo Umemura

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Okazaki, JP

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Patents Grantslast 30 patents

Information Patent Grant
Battery pack with an improved cooling structure
- Patent number 6,566,005
- Issue date May 20, 2003
- Makita Corporation
- Yasutoshi Shimma
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Charging system including a charger and an electric power tool oper...
- Patent number 6,066,938
- Issue date May 23, 2000
- Makita Corporation
- Koki Hyodo
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Portable electric screwdriver
- Patent number D411947
- Issue date Jul 13, 1999
- Makita Corporation
- Manabu Sugimoto
- D08 - Tools and hardware
Information Patent Grant
Cordless circular saw
- Patent number D411425
- Issue date Jun 22, 1999
- Makita Corporation
- Manabu Sugimoto
- D08 - Tools and hardware