Membership
Tour
Register
Log in
Katsuji Arakawa
Follow
Person
Chino, JP
People
Overview
Industries
Organizations
People
Information
Impact
Patents Grants
last 30 patents
Information
Patent Grant
Wavelength variable interference filter having substrate hydroxyl g...
Patent number
11,042,023
Issue date
Jun 22, 2021
Seiko Epson Corporation
Katsuji Arakawa
G02 - OPTICS
Information
Patent Grant
Wavelength variable interference filter, manufacturing method of wa...
Patent number
9,372,337
Issue date
Jun 21, 2016
Seiko Epson Corporation
Katsuji Arakawa
G02 - OPTICS
Information
Patent Grant
Variable wavelength interference filter, optical module, optical an...
Patent number
9,170,418
Issue date
Oct 27, 2015
Seiko Epson Corporation
Katsuji Arakawa
B81 - MICRO-STRUCTURAL TECHNOLOGY
Information
Patent Grant
Nozzle plate, discharge head, method for producing the nozzle plate...
Patent number
8,746,846
Issue date
Jun 10, 2014
Seiko Epson Corporation
Katsuji Arakawa
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Nozzle plate, droplet discharge head, method for manufacturing the...
Patent number
8,485,640
Issue date
Jul 16, 2013
Seiko Epson Corporation
Kazufumi Oya
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Droplet discharging head, droplet discharging apparatus, method for...
Patent number
7,637,601
Issue date
Dec 29, 2009
Seiko Epson Corporation
Kazufumi Oya
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Electrostatic actuator, droplet discharge head and method for manuf...
Patent number
7,581,824
Issue date
Sep 1, 2009
Seiko Epson Corporation
Masahiro Fujii
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Method for manufacturing a droplet ejection head
Patent number
7,536,785
Issue date
May 26, 2009
Seiko Epson Corporation
Katsuji Arakawa
Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information
Patent Grant
Method of manufacturing a nozzle plate
Patent number
7,306,744
Issue date
Dec 11, 2007
Seiko Epson Corporation
Yoshihide Matsuo
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Method for surface treatment
Patent number
7,147,795
Issue date
Dec 12, 2006
Seiko Epson Corporation
Hiroshi Koeda
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Heat-generating element, heat-generating substrates, heat-generatin...
Patent number
6,989,513
Issue date
Jan 24, 2006
Seiko Epson Corporation
Katsuji Arakawa
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Semiconductor chip, semiconductor device, circuit board and electro...
Patent number
6,677,237
Issue date
Jan 13, 2004
Seiko Epson Corporation
Kazushige Umetsu
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Method for machining work by laser beam
Patent number
6,563,079
Issue date
May 13, 2003
Seiko Epson Corporation
Kazushige Umetsu
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Printing head and ink jet recording apparatus using the same
Patent number
6,447,107
Issue date
Sep 10, 2002
Seiko Epson Corporation
Yuji Chino
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Semiconductor chip, semiconductor device, circuit board and electro...
Patent number
6,424,048
Issue date
Jul 23, 2002
Seiko Epson Corporation
Kazushige Umetsu
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Ink jet head, manufacturing method therefor, and ink jet recording...
Patent number
6,375,310
Issue date
Apr 23, 2002
Seiko Epson Corporation
Katsuji Arakawa
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Patents Applications
last 30 patents
Information
Patent Application
WAVELENGTH VARIABLE INTERFERENCE FILTER, ELECTRONIC COMPONENT, MANU...
Publication number
20170199372
Publication date
Jul 13, 2017
SEIKO EPSON CORPORATION
Katsuji ARAKAWA
G02 - OPTICS
Information
Patent Application
INTERFERENCE FILTER, INTERFERENCE FILTER MANUFACTURING METHOD, OPTI...
Publication number
20140268344
Publication date
Sep 18, 2014
SEIKO EPSON CORPORATION
Katsuji ARAKAWA
B32 - LAYERED PRODUCTS
Information
Patent Application
WAVELENGTH VARIABLE INTERFERENCE FILTER, MANUFACTURING METHOD OF WA...
Publication number
20140168775
Publication date
Jun 19, 2014
SEIKO EPSON CORPORATION
Katsuji Arakawa
G02 - OPTICS
Information
Patent Application
VARIABLE WAVELENGTH INTERFERENCE FILTER, OPTICAL MODULE, OPTICAL AN...
Publication number
20130038876
Publication date
Feb 14, 2013
SEIKO EPSON CORPORATION
Katsuji ARAKAWA
B81 - MICRO-STRUCTURAL TECHNOLOGY
Information
Patent Application
NOZZLE PLATE, DISCHARGE HEAD, METHOD FOR PRODUCING THE NOZZLE PLATE...
Publication number
20110134188
Publication date
Jun 9, 2011
SEIKO EPSON CORPORATION
Katsuji Arakawa
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Application
NOZZLE PLATE, DROPLET DISCHARGE HEAD, METHOD FOR MANUFACTURING THE...
Publication number
20080309718
Publication date
Dec 18, 2008
SEIKO EPSON CORPORATION
Kazufumi Oya
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Application
DROPLET DISCHARGING HEAD, DROPLET DISCHARGING APPARATUS, METHOD FOR...
Publication number
20080043068
Publication date
Feb 21, 2008
SEIKO EPSON CORPORATION
Kazufumi OYA
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Application
Method for producing nozzle substrate, method for producing droplet...
Publication number
20070200877
Publication date
Aug 30, 2007
Seiko Epson Corporation
Katsuji Arakawa
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Application
Electrostatic actuator, liquid-jet head, liquid-jet apparatus, devi...
Publication number
20060232655
Publication date
Oct 19, 2006
Masahiro Fujii
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Application
Electrostatic actuator, droplet discharge head and method for manuf...
Publication number
20060125879
Publication date
Jun 15, 2006
Seiko Epson Corporation
Masahiro Fujii
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Application
Method for manufacturing droplet ejection head, droplet ejection he...
Publication number
20060118512
Publication date
Jun 8, 2006
Seiko Epson Corporation
Katsuji Arakawa
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Application
Method of manufacturing a nozzle plate
Publication number
20050269289
Publication date
Dec 8, 2005
Yoshihide Matsuo
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Application
Surface treatment apparatus
Publication number
20050115679
Publication date
Jun 2, 2005
Ryuichi Kurosawa
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Application
Method for surface treatment
Publication number
20050095811
Publication date
May 5, 2005
Hiroshi Koeda
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Heat-generating element, heat-generating substrates, heat-generatin...
Publication number
20040256376
Publication date
Dec 23, 2004
Katsuji Arakawa
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Application
Semiconductor chip, semiconductor device, circuit board and electro...
Publication number
20020151169
Publication date
Oct 17, 2002
SEIKO EPSON CORPORATION
Kazushige Umetsu
H01 - BASIC ELECTRIC ELEMENTS