IK

Isamu Kubo

NC Nippon Cmk: 13 patents #4 of 32Top 15%
Ricoh Company: 11 patents #2,054 of 9,818Top 25%
Overall (All Time): #168,366 of 4,157,543Top 5%
24
Patents All Time

Issued Patents All Time

Showing 1–24 of 24 patents

Patent #TitleCo-InventorsDate
12304206 Liquid discharge head and liquid discharge apparatus Keitaroh SAKAI 2025-05-20
11707929 Liquid discharge apparatus and liquid discharge method Eiji Tachibana, Ryo Honda 2023-07-25
11597221 Liquid discharge apparatus Ryo Honda 2023-03-07
10946660 Liquid discharge apparatus and suction apparatus Shotaro Ueda, Shingo Masaoka 2021-03-16
9342044 Fixing device and image forming apparatus and method of assembling the fixing device Yutaka Naitoh, Tomohiko Fujii, Minoru Toyoda, Hitoshi Fujiwara, Tomoya Adachi +3 more 2016-05-17
8955945 Image forming device Atsushi Miwa, Tomohiro Sawai 2015-02-17
8454122 Image forming apparatus 2013-06-04
8205961 Inkjet recording apparatus 2012-06-26
8177313 Image forming apparatus Kazuki Suzuki, Yasuhiro Kawashima 2012-05-15
8038271 Image forming apparatus including recording head Yasuhiro Kawashima, Kazuki Suzuki, Masanori Tanaka 2011-10-18
8033637 Image forming apparatus with maintenance-and-recovery mechanism 2011-10-11
5296082 Mold for printed wiring board 1994-03-22
5277929 Method for masking through holes in manufacturing process of printed circuit board Kameharu Seki, Yasuaki Otani 1994-01-11
5238524 Hole masking apparatus Kameharu Seki, Yasuaki Otani 1993-08-24
5180465 Etching method of forming microcircuit patterns on a printed circuit board Kameharu Seki, Shin Kawakami 1993-01-19
5169477 Etching apparatus for forming microcircuit patterns on a printed circuit board Kameharu Seki, Shin Kawakami 1992-12-08
5096524 Method for automatically stretching a silk screen fabric on a silk screen printing frame Yasuaki Ohtani, Kohji Ohtake, Kazuo Hayashi 1992-03-17
4978414 Apparatus for stretching silk including means to move cramp members independently of each other Yasuaki Ohtani, Kohji Ohtake, Kazuo Hayashi 1990-12-18
4976573 Apparatus for chamfering planar plate Kamehru Seki 1990-12-11
4975136 Method of filler taping screen frame and method of filling screen frame Kameharu Seki 1990-12-04
4972630 Method of surface grinding of planar member Kameharu Seki 1990-11-27
4969296 Apparatus of surface grinding of planar member Kameharu Seki 1990-11-13
4925347 Method of chamfering planar plate Kameharu Seki 1990-05-15
4856424 Apparatus for filler taping screen frame and apparatus for applying filling liquid to screen frame Kameharu Seki 1989-08-15