Ershad Ali Chowdhury

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Kanagawa, JP

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Patents Grantslast 30 patents

Information Patent Grant
Printhead substrate, method of manufacturing the same, printhead, a...
- Patent number 9,061,500
- Issue date Jun 23, 2015
- Canon Kabushiki Kaisha
- Ershad Ali Chowdhury
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Circuit board and liquid discharging apparatus
- Patent number 7,270,398
- Issue date Sep 18, 2007
- Canon Kabushiki Kaisha
- Keiichi Sasaki
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Method for producing circuit substrate
- Patent number 7,244,370
- Issue date Jul 17, 2007
- Canon Kabushiki Kaisha
- Keiichi Sasaki
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Manufacturing method of circuit board, circuit board, and liquid di...
- Patent number 6,838,351
- Issue date Jan 4, 2005
- Canon Kabushiki Kaisha
- Keiichi Sasaki
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR

Patents Applicationslast 30 patents

Information Patent Application
PRINTHEAD SUBSTRATE, METHOD OF MANUFACTURING THE SAME, PRINTHEAD, A...
- Publication number 20150109370
- Publication date Apr 23, 2015
- Canon Kabushiki Kaisha
- Ershad Ali Chowdhury
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
Circuit board and liquid discharging apparatus
- Publication number 20050078152
- Publication date Apr 14, 2005
- Canon Kabushiki Kaisha
- Keiichi Sasaki
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Application
Method for producing circuit substrate
- Publication number 20050031996
- Publication date Feb 10, 2005
- Canon Kabushiki Kaisha
- Keiichi Sasaki
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
Manufacturing method of circuit board, circuit board, and liquid di...
- Publication number 20040191982
- Publication date Sep 30, 2004
- Canon Kabushiki Kaisha
- Keiichi Sasaki
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR