Growing community of inventors

Matsumoto, Japan

Keita Hanawa

Average Co-Inventor Count = 4.46

ph-index = 1

The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.

Forward Citations = 0

Keita HanawaKensuke Tamai (3 patents)Keita HanawaFumio Shimada (2 patents)Keita HanawaKatsunari Kumagai (2 patents)Keita HanawaNaoaki Maruyama (2 patents)Keita HanawaTakuya Ota (2 patents)Keita HanawaMunetoshi Yoshikawa (2 patents)Keita HanawaMizuho Igawa (2 patents)Keita HanawaRyo Nishikawa (2 patents)Keita HanawaJunichi Onosaka (2 patents)Keita HanawaMinoru Kobayashi (2 patents)Keita HanawaKatsumi Yamada (1 patent)Keita HanawaKenji Kojima (1 patent)Keita HanawaTatsuya Ito (1 patent)Keita HanawaKiyoshi Nakamura (1 patent)Keita HanawaToshiyuki Yoda (1 patent)Keita HanawaKazuhisa Takeda (1 patent)Keita HanawaHiroyuki Santo (1 patent)Keita HanawaYoshinobu Yoshida (1 patent)Keita HanawaShohei Namikoshi (1 patent)Keita HanawaKatsumasa Tanaka (1 patent)Keita HanawaKatsumasa Tanaka (0 patent)Keita HanawaKeita Hanawa (9 patents)Kensuke TamaiKensuke Tamai (32 patents)Fumio ShimadaFumio Shimada (18 patents)Katsunari KumagaiKatsunari Kumagai (10 patents)Naoaki MaruyamaNaoaki Maruyama (9 patents)Takuya OtaTakuya Ota (5 patents)Munetoshi YoshikawaMunetoshi Yoshikawa (5 patents)Mizuho IgawaMizuho Igawa (3 patents)Ryo NishikawaRyo Nishikawa (2 patents)Junichi OnosakaJunichi Onosaka (2 patents)Minoru KobayashiMinoru Kobayashi (2 patents)Katsumi YamadaKatsumi Yamada (61 patents)Kenji KojimaKenji Kojima (45 patents)Tatsuya ItoTatsuya Ito (28 patents)Kiyoshi NakamuraKiyoshi Nakamura (26 patents)Toshiyuki YodaToshiyuki Yoda (23 patents)Kazuhisa TakedaKazuhisa Takeda (21 patents)Hiroyuki SantoHiroyuki Santo (4 patents)Yoshinobu YoshidaYoshinobu Yoshida (3 patents)Shohei NamikoshiShohei Namikoshi (3 patents)Katsumasa TanakaKatsumasa Tanaka (1 patent)Katsumasa TanakaKatsumasa Tanaka (0 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Seiko Epson Corporation (7 from 33,404 patents)

2. Canon Denshi Kabushiki Kaisha (2 from 316 patents)


9 patents:

1. 12479202 - Printing apparatus

2. 12479223 - Printing device

3. 12311655 - Ink jet recording apparatus having an inert gas supply portion

4. 12291046 - Holding unit and liquid discharge device

5. 11654704 - Recording apparatus

6. 11420457 - Recording apparatus

7. 11167575 - Recording apparatus

8. 10807343 - Fiber reinforced plastic body, shutter device and optical apparatus

9. 10493717 - Fiber reinforced laminate, shutter device and optical apparatus

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as of
12/5/2025
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