KA

Katsuji Arakawa

SE Seiko Epson: 16 patents #1,167 of 7,774Top 20%
📍 Chino, JP: #72 of 297 inventorsTop 25%
Overall (All Time): #294,187 of 4,157,543Top 8%
16
Patents All Time

Issued Patents All Time

Showing 1–16 of 16 patents

Patent #TitleCo-InventorsDate
11042023 Wavelength variable interference filter having substrate hydroxyl group concentration, electronic component, manufacturing method of electronic component, and electronic apparatus Susumu SHINTO 2021-06-22
9372337 Wavelength variable interference filter, manufacturing method of wavelength variable interference filter, optical filter device, optical module, and electronic apparatus 2016-06-21
9170418 Variable wavelength interference filter, optical module, optical analysis device, and method for manufacturing variable wavelength interference filter Nozomu HIROKUBO, Hiroshi Komatsu 2015-10-27
8746846 Nozzle plate, discharge head, method for producing the nozzle plate, method for producing the discharge head, and discharge device 2014-06-10
8485640 Nozzle plate, droplet discharge head, method for manufacturing the same and droplet discharge device Kazufumi Oya 2013-07-16
7637601 Droplet discharging head, droplet discharging apparatus, method for manufacturing droplet discharging head and method for manufacturing droplet discharging apparatus Kazufumi Oya 2009-12-29
7581824 Electrostatic actuator, droplet discharge head and method for manufacturing the droplet discharge head, droplet discharge apparatus, and device Masahiro Fujii 2009-09-01
7536785 Method for manufacturing a droplet ejection head Yasutaka MATSUMOTO 2009-05-26
7306744 Method of manufacturing a nozzle plate Yoshihide Matsuo 2007-12-11
7147795 Method for surface treatment Hiroshi Koeda, Kazufumi Oya 2006-12-12
6989513 Heat-generating element, heat-generating substrates, heat-generating substrate manufacturing method, microswitch, and flow sensor Masahiro Fujii, Hiroshi Koeda 2006-01-24
6677237 Semiconductor chip, semiconductor device, circuit board and electronic equipment and production methods for them Kazushige Umetsu, Jun Amako, Shinichi Yotsuya 2004-01-13
6563079 Method for machining work by laser beam Kazushige Umetsu, Jun Amako, Shinichi Yotsuya 2003-05-13
6447107 Printing head and ink jet recording apparatus using the same Yuji Chino 2002-09-10
6424048 Semiconductor chip, semiconductor device, circuit board and electronic equipment and production methods for them Kazushige Umetsu, Jun Amako, Shinichi Yotsuya 2002-07-23
6375310 Ink jet head, manufacturing method therefor, and ink jet recording apparatus Hiroshi Koeda 2002-04-23