KO

Kazumi Oi

DI Dic: 10 patents #37 of 844Top 5%
DC Dainippon Ink And Chemicals: 2 patents #241 of 1,002Top 25%
Overall (All Time): #400,013 of 4,157,543Top 10%
12
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
12409418 Hollow fiber degassing module, inkjet printer, and method for degassing liquid Naruhito Suzuki, Youhei Suganuma 2025-09-09
12115505 Resistivity value regulating device and resistivity value regulating method Daijirou Anzai, Naoki Hada 2024-10-15
12090445 Tube unit and degassing module Youhei Suganuma, Kazuyasu Kawashima, Akira Sato 2024-09-17
11602703 Degasification system, liquid degasification method, degasification module, method for manufacturing degasification system, and method for producing natural resources Wataru Yamamoto, Katsuhiko Igari, Kenji Sano 2023-03-14
11542185 Resistivity adjustment device and resistivity adjustment method Masato Saito, Naoki Hada 2023-01-03
11524267 Resistivity value regulating device and resistivity value regulating method Daijirou Anzai, Naoki Hada 2022-12-13
11478753 Hollow fiber membrane module and production method therefor, and epoxy resin used in hollow fiber membrane and production method Youhei Suganuma, Tsugio Tomura, Makoto Kimura 2022-10-25
10821378 Hollow fiber degassing module, and method of degassing liquid using said hollow fiber degassing module Shigeaki Fujieda, Youhei Suganuma 2020-11-03
10792623 Device for adjusting specific resistance value and method for adjusting specific resistance value Masato Saito, Naoki Hada 2020-10-06
10328390 Hollow-fiber degassing module and inkjet printer Youhei Suganuma 2019-06-25
6884359 Apparatus and method for controlling resistivity of ultra pure water Toshio Kambe, Kazunari Sakai, Koji Kawase 2005-04-26
6158721 Apparatus and method for adding carbon dioxide gas to ultra pure water Hitoshi Katou, Kazunari Sakai, Toshio Kambe 2000-12-12