Growing community of inventors

Hiroshima, Japan

Akio Okayama

Average Co-Inventor Count = 5.01

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 = 3

Akio OkayamaMiwa Shinohara (4 patents)Akio OkayamaTomohiro Komaji (2 patents)Akio OkayamaDaisuke Nakazato (2 patents)Akio OkayamaHiromu Oda (2 patents)Akio OkayamaYoshihiko Horita (2 patents)Akio OkayamaTomoki Takahashi (2 patents)Akio OkayamaTatsuo Koibuchi (2 patents)Akio OkayamaKazuaki Kikumitsu (2 patents)Akio OkayamaSachi Matsui (2 patents)Akio OkayamaKeiichiro Nishiura (2 patents)Akio OkayamaYukihiro Moriyama (1 patent)Akio OkayamaTomomi Miyamoto (1 patent)Akio OkayamaNorifumi Inoue (1 patent)Akio OkayamaYutaka Hashimoto (1 patent)Akio OkayamaAyako Teishi (1 patent)Akio OkayamaYoshihiro Kinoshita (1 patent)Akio OkayamaTooru Waki (1 patent)Akio OkayamaKazuhiro Takagaki (1 patent)Akio OkayamaAkio Okayama (6 patents)Miwa ShinoharaMiwa Shinohara (4 patents)Tomohiro KomajiTomohiro Komaji (9 patents)Daisuke NakazatoDaisuke Nakazato (8 patents)Hiromu OdaHiromu Oda (7 patents)Yoshihiko HoritaYoshihiko Horita (6 patents)Tomoki TakahashiTomoki Takahashi (6 patents)Tatsuo KoibuchiTatsuo Koibuchi (2 patents)Kazuaki KikumitsuKazuaki Kikumitsu (2 patents)Sachi MatsuiSachi Matsui (2 patents)Keiichiro NishiuraKeiichiro Nishiura (2 patents)Yukihiro MoriyamaYukihiro Moriyama (28 patents)Tomomi MiyamotoTomomi Miyamoto (3 patents)Norifumi InoueNorifumi Inoue (2 patents)Yutaka HashimotoYutaka Hashimoto (1 patent)Ayako TeishiAyako Teishi (1 patent)Yoshihiro KinoshitaYoshihiro Kinoshita (1 patent)Tooru WakiTooru Waki (1 patent)Kazuhiro TakagakiKazuhiro Takagaki (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Nishikawa Rubber Co., Ltd. (6 from 233 patents)

2. Mazda Motor Corporation (4 from 4,688 patents)

3. Mazda Motor Corporat Ion (1 from 47 patents)

4. Katayama Kogyo Co., Ltd. (1 from 19 patents)

5. Ishizaki Honten Co., Ltd. (1 from 2 patents)


6 patents:

1. 10953735 - Penetrating wind prevention structure for vehicle

2. 10843544 - Sealing structure for openable roof-equipped vehicle

3. 9994096 - Seal structure of automotive vehicle with storing-type roof

4. 9975414 - Vehicle-body structure of automotive vehicle with storing-type roof

5. 8667740 - Weather strip

6. 7775580 - Door glass guiding structure for vehicle

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as of
1/23/2026
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