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Kouji Sumi
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Nagano, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Process of making a piezoelectric thin film component
Patent number
7,240,409
Issue date
Jul 10, 2007
Seiko Epson Corporation
Kouji Sumi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Process for producing a laminated ink-jet recording head
Patent number
6,836,940
Issue date
Jan 4, 2005
Seiko Epson Corporation
Minoru Usui
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Method of manufacturing piezoelectric thin film component
Patent number
6,748,635
Issue date
Jun 15, 2004
Seiko Epson Corporation
Kouji Sumi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Method of producing a piezoelectric device having at least one piez...
Patent number
6,711,793
Issue date
Mar 30, 2004
Seiko Epson Corporation
Kouji Sumi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Method for manufacturing a piezoelectric film element and an ink-je...
Patent number
6,698,096
Issue date
Mar 2, 2004
Seiko Epson Corporation
Souichi Moriya
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Piezoelectric thin film component, inkjet type recording head and i...
Patent number
6,511,161
Issue date
Jan 28, 2003
Seiko Epson Corporation
Kouji Sumi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Method of forming oxide-ceramics film
Patent number
6,455,106
Issue date
Sep 24, 2002
Seiko Epson Corporation
Hong Qiu
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Piezoelectric device, ink jet recording head, and methods of manufa...
Patent number
6,411,017
Issue date
Jun 25, 2002
Seiko Epson Corporation
Hong Qiu
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Functional thin film with a mixed layer, piezoelectric device, ink...
Patent number
6,402,303
Issue date
Jun 11, 2002
Seiko Epson Corporation
Kouji Sumi
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Process for producing a laminated ink-jet recording head
Patent number
6,332,254
Issue date
Dec 25, 2001
Seiko Epson Corporation
Minoru Usui
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Piezoelectric film element and ink-jet recording head using the same
Patent number
6,328,433
Issue date
Dec 11, 2001
Seiko Epson Corporation
Souichi Moriya
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Piezoelectric thin film component, injet type recording head and in...
Patent number
6,194,818
Issue date
Feb 27, 2001
Seiko Epson Corporation
Kouji Sumi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Laminated ink-jet recording head, a process for production thereof...
Patent number
6,158,847
Issue date
Dec 12, 2000
Seiko Epson Corporation
Minoru Usui
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Piezoelectric thin film, method for producing the same, and ink jet...
Patent number
6,140,746
Issue date
Oct 31, 2000
Seiko Epson Corporation
Satoru Miyashita
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Piezoelectric thin-film device, process for manufacturing the same,...
Patent number
6,103,072
Issue date
Aug 15, 2000
Seiko Epson Corporation
Tsutomu Nishiwaki
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Piezoelectric thin-film device process for manufacturing the same,...
Patent number
6,013,970
Issue date
Jan 11, 2000
Seiko Epson Corporation
Tsutomu Nishiwaki
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Patents Applications
last 30 patents
Information
Patent Application
Piezoelectric thin film component, inkjet type recording head and i...
Publication number
20040183868
Publication date
Sep 23, 2004
Seiko Epson Corporation
Kouji Sumi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Method for manufacturing a piezoelectric film element and an ink-je...
Publication number
20020149651
Publication date
Oct 17, 2002
Souichi Moriya
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Application
Functional thin film, piezoelectric device, ink jet recording head,...
Publication number
20020097305
Publication date
Jul 25, 2002
Kouji Sumi
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Application
Piezoelectric thin film component, inkjet type recording head and i...
Publication number
20020030723
Publication date
Mar 14, 2002
Kouji Sumi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Process for producing a laminated ink-jet recording head
Publication number
20020018105
Publication date
Feb 14, 2002
Seiko Epson Corporation
Minoru Usui
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS