HA

Hiroki Akiyama

Canon: 23 patents #2,685 of 19,416Top 15%
SC Sumitomo Electric Optifrontier Co.: 3 patents #19 of 57Top 35%
AK Asahi Kasei Kabushiki Kaisha: 2 patents #302 of 1,220Top 25%
Fujitsu Limited: 1 patents #14,843 of 24,456Top 65%
Overall (All Time): #127,607 of 4,157,543Top 4%
29
Patents All Time

Issued Patents All Time

Showing 25 most recent of 29 patents

Patent #TitleCo-InventorsDate
12350946 Printing apparatus Yu Hanzawa, Yasuhito Tsubakimoto, Toshimitsu Takahashi, Toru Yada, Takao Kawai 2025-07-08
12298709 Toner and method for producing toner Shuntaro Watanabe, Hiroki Kagawa, Shuhei Moribe 2025-05-13
12276841 Optical fiber fusion splicing method and fusion splicing device Makoto Miyamori, Kazuyoshi OOKI, Ryosuke Meo, Ryuichiro Sato, Hiroshi Takayanagi 2025-04-15
12259655 Manufacturing method of flexographic printing plate and printing method Akinao Nakamura, Takumi Ishii, Yusuke Shimizu 2025-03-25
12085757 Optical fiber fusion splicing device, and fusion splicing method for optical fiber Hideaki YUSA, Ryosuke Meo, Hiroshi Takayanagi 2024-09-10
12078960 Toner and method for producing toner Hiroki Kagawa, Shuhei Moribe, Shuntaro Watanabe 2024-09-03
12019374 Photosensitive resin structure for flexographic printing plate and method for producing flexographic printing plate Shinji Miyamoto 2024-06-25
11809132 Toner Yuujirou Nagashima, Yasuhiro Hashimoto, Koji Nishikawa, Tomoya Nagaoka, Shuntaro Watanabe +1 more 2023-11-07
11796930 Magnetic toner Shuntaro Watanabe, Hiroki Kagawa 2023-10-24
D983851 Optical fiber fusion splicer Kazufumi Joko, Shohei Nakamura 2023-04-18
11415902 Toner Shuntaro Watanabe, Hiroki Kagawa 2022-08-16
11112709 Toner and toner manufacturing method Tatsuya Saeki, Shuntaro Watanabe, Hiroki Kagawa, Takashi Matsui 2021-09-07
11112713 Toner Shuhei Moribe, Hiroyuki Tomono, Tatsuya Saeki, Hiroki Kagawa, Atsuhiko Ohmori +1 more 2021-09-07
10969704 Magnetic toner and method for manufacturing magnetic toner Hiroki Kagawa, Shuntaro Watanabe, Tatsuya Saeki, Takashi Matsui 2021-04-06
10942463 Toner Daisuke Yoshiba, Koji Nishikawa, Shotaro Nomura, Katsuhisa Yamazaki 2021-03-09
10768540 External additive, method for manufacturing external additive, and toner Shuntaro Watanabe, Tatsuya Saeki, Atsuhiko Ohmori, Shuhei Moribe, Kazumichi Nakahama +1 more 2020-09-08
10747134 External toner additive, method for producing external toner additive, and toner Shuntaro Watanabe, Tatsuya Saeki, Atsuhiko Ohmori, Shuhei Moribe, Kazumichi Nakahama +1 more 2020-08-18
10271216 Wireless access system Daisuke Nitta, Satoshi Yamamoto, Hitoshi Yokoyama 2019-04-23
10162280 Toner Kouji Nishikawa, Katsuhisa Yamazaki, Daisuke Yoshiba, Shotaro Nomura, Masami Fujimoto 2018-12-25
10101683 Toner and external additive for toner Koji Nishikawa, Shuhei Moribe, Daisuke Yoshiba, Shotaro Nomura, Kosuke Fukudome +2 more 2018-10-16
9829818 Toner Daisuke Yoshiba, Katsuhisa Yamazaki, Koji Nishikawa, Shotaro Nomura, Masami Fujimoto 2017-11-28
9606462 Toner and method for manufacturing toner Shotaro Nomura, Koji Nishikawa, Kosuke Fukudome, Daisuke Yoshiba, Shohei Tsuda +1 more 2017-03-28
9575461 Process cartridge and image forming method using toner having properties for high image quality Koji Nishikawa, Kosuke Fukudome, Shotaro Nomura, Daisuke Yoshiba, Shohei Tsuda +1 more 2017-02-21
9500970 Toner Shotaro Nomura, Masami Fujimoto, Katsuhisa Yamazaki, Kouji Nishikawa, Daisuke Yoshiba 2016-11-22
9470993 Magnetic toner Koji Nishikawa, Kosuke Fukudome, Shotaro Nomura, Shohei Tsuda, Daisuke Yoshiba +1 more 2016-10-18