HN

Hiroshi Nakai

Ricoh Company: 55 patents #171 of 9,818Top 2%
Canon: 25 patents #2,400 of 19,416Top 15%
SI Sanshin Industries: 14 patents #29 of 319Top 10%
AC Amada Co.: 10 patents #14 of 479Top 3%
PA Panasonic: 9 patents #2,933 of 21,108Top 15%
DA Daihen: 3 patents #87 of 305Top 30%
SC Sk Kaken Co.: 2 patents #3 of 14Top 25%
RE Renesas Electronics: 2 patents #1,855 of 4,529Top 45%
SC Shionogi & Co.: 1 patents #620 of 1,054Top 60%
MC Mitsubishi Gas Chemical Company: 1 patents #1,048 of 1,727Top 65%
SC Stanley Electric Co.: 1 patents #550 of 1,072Top 55%
Sumitomo Electric Industries: 1 patents #13,249 of 21,551Top 65%
Fujitsu Limited: 1 patents #14,843 of 24,456Top 65%
FL Furuno Electric Company Limited: 1 patents #215 of 407Top 55%
Overall (All Time): #8,961 of 4,157,543Top 1%
126
Patents All Time

Issued Patents All Time

Showing 1–25 of 126 patents

Patent #TitleCo-InventorsDate
12360471 Process cartridge and image forming apparatus incorporating the same 2025-07-15
12355012 Ceramic-insulated multi-metal substrate structure with integrated coating film for high-performance light-emitting devices Koji Ichikawa 2025-07-08
12045000 Image forming apparatus Kazuhiko Watanabe 2024-07-23
11987063 Handheld printing apparatus Tetsuyo Ohashi, Akira Kida, Sho Takahashi 2024-05-21
11958303 Handheld printing apparatus Tetsuyo Ohashi 2024-04-16
11932034 Handheld printing apparatus Tetsuyo Ohashi 2024-03-19
11840061 Handheld printing apparatus Tetsuyo Ohashi 2023-12-12
11833845 Hanheld printing apparatus Tetsuyo Ohashi 2023-12-05
11802782 Ultrasonic flowmeter with a flow path inner wall surface with a draft of a mold for integral molding Yukihide Takahashi, Kenji Yasuda, Takashi Kayaba, Yuki Anan 2023-10-31
11794479 Inkjet printing apparatus and recovery method Takahiro Kiuchi, Noriko Sato, Takashi Sasaki, Takatoshi Nakano, Atsushi Takahashi +2 more 2023-10-24
11761804 Ultrasonic flowmeter having a partition plate dividing the flow path into a measurement flow path and a non-measurement flow path Yukihide Takahashi, Kenji Yasuda, Takashi Kayaba, Yuki Anan 2023-09-19
11686604 Ultrasonic flow meter having one or more integrally molded partition plates dividing the measurement path and having thinner upstream and downstream edges Yukihide Takahashi, Kenji Yasuda, Takashi Kayaba, Yuki Anan 2023-06-27
11442396 Cleaning blade, sheet conveyance roller, process cartridge, and image forming apparatus Kazuhiko Watanabe, Masahiro Ohmori 2022-09-13
11345154 Inkjet printing apparatus and recovery method Takahiro Kiuchi, Noriko Sato, Takashi Sasaki, Takatoshi Nakano, Atsushi Takahashi +2 more 2022-05-31
D945292 Flow sensor YUDAI ISHIZAKI, Kenji Yasuda 2022-03-08
D937696 Flow meter Kenta Uchida, Kenji Yasuda 2021-12-07
11150604 Image forming apparatus with a temperature change suppressor Kazuhiko Watanabe, Yasuhide Nakazawa 2021-10-19
11141979 Inkjet printing apparatus and treatment liquid holding unit Takahiro Kiuchi, Noriko Sato 2021-10-12
11130341 Liquid ejection apparatus and maintenance apparatus Noriko Sato, Takahiro Kiuchi, Yoshinori Yamaguchi, Yuki Amauchi, Takashi Sasaki 2021-09-28
10894416 Inkjet printing apparatus and ink filling method Noriko Sato, Takahiro Kiuchi, Takashi Sasaki 2021-01-19
10843467 Liquid ejecting apparatus Noriko Sato, Yoshinori Nakagawa, Takatoshi Nakano, Atsushi Takahashi, Takuya Fukasawa 2020-11-24
10814633 Liquid ejection apparatus Yoshinori Yamaguchi 2020-10-27
10710368 Inkjet printing apparatus Takahiro Kiuchi, Noriko Sato 2020-07-14
10668520 Punch die Shigeru Endo 2020-06-02
10543680 Inkjet printing apparatus and ejecting method Takuya Fukasawa, Takatoshi Nakano, Atsushi Takahashi, Yoshinori Nakagawa, Noriko Sato 2020-01-28