KO

Ken Oikawa

SI Sumitomo Heavy Industries: 13 patents #17 of 917Top 2%
Ricoh Company: 5 patents #3,664 of 9,818Top 40%
Overall (All Time): #253,430 of 4,157,543Top 7%
18
Patents All Time

Issued Patents All Time

Showing 1–18 of 18 patents

Patent #TitleCo-InventorsDate
11047374 Cryopump and gate valve 2021-06-29
10921041 Movable platen cooling apparatus and movable platen cooling system 2021-02-16
10456706 Cryopump 2019-10-29
10359034 Cryopump 2019-07-23
10180642 Pressure device, image forming apparatus, and method of controlling pressure device Minoru Takahashi 2019-01-15
10156228 Cryopump and method for regenerating the cryopump 2018-12-18
10139757 Pressing apparatus, image forming apparatus, method for controlling pressing apparatus, and computer-readable storage medium Minoru Takahashi, Tetsuya Sonoda 2018-11-27
10121040 Recognition apparatus, recognition method, storage medium, management system, and conveyance system Hiroshi Katayama, Koichi Kudo, Toshihiro Okamoto, Tamon Sadasue, Hanako BANDO +1 more 2018-11-06
10030640 Cryopump and vacuum pumping method 2018-07-24
10006451 Cryopump 2018-06-26
10001117 Cryopump system, cryopump controller, and method for regenerating the cryopump 2018-06-19
9926920 Cryopump 2018-03-27
9836004 Pressurizing device, image forming apparatus, and control, method for pressurizing device Minoru Takahashi 2017-12-05
9789420 Cold trap and mounting structure of cold trap 2017-10-17
9737828 Cryopump having inlet cryopanel extension 2017-08-22
8800303 Cold trap and cold trap regeneration method 2014-08-12
7992394 Cold trap and cold trap regeneration method 2011-08-09
5153750 Image reading apparatus having a contact type image sensor device Masaki Hiroi, Koichi Haga 1992-10-06