YW

Yukitaka Watarai

Ricoh Company: 7 patents #2,977 of 9,818Top 35%
TC Tohoku Ricoh Co.: 1 patents #101 of 204Top 50%
Overall (All Time): #550,376 of 4,157,543Top 15%
9
Patents All Time

Issued Patents All Time

Showing 1–9 of 9 patents

Patent #TitleCo-InventorsDate
11560491 Liquid composition, device for applying liquid composition, image forming device, and image forming method Dongsik Jang, Tsutomu Maekawa, Takashi Tamai, Atsufumi Hanazawa, Koji Katsuragi 2023-01-24
11040561 Ink and processing liquid set, image forming method, and image forming device Takashi Tamai, Dongsik Jang, Atsufumi Hanazawa, Satoshi Takahashi, Yoshiki Yanagawa +1 more 2021-06-22
10647129 Printing method and set of processing fluid and ink Atsufumi Hanazawa, Hiroshi Gotou, Tsutomu Maekawa, Koji Katsuragi, Tomohiro Nakagawa 2020-05-12
9120334 Image forming apparatus and image forming method Koji Nagai 2015-09-01
8382271 Inkjet ink, ink cartridge, inkjet recording apparatus, inkjet recording method and image forming apparatus Hiroshi Goto, Koji Katsuragi, Hidefumi Nagashima 2013-02-26
8187372 Ink-jet O/W emulsion ink and ink-jet recording method using the same 2012-05-29
8136916 Image forming apparatus Yusuke Nemoto, Yoshihiko Kudoh, Akira Saito, Yoshiyuki Shishido, Hiroyuki Hiratsuka +2 more 2012-03-20
6149720 Water-in-oil type emulsion ink for stencil printing Keisuke Asada, Koji Ono, Yoshihiko Sato 2000-11-21
5806718 Cartridge for storing a viscous substance Yoshio Ota, Kouji Ono 1998-09-15