Growing community of inventors

Tokyo, Japan

Yoshiyasu Ishii

Average Co-Inventor Count = 3.06

ph-index = 18

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 = 1,634

Yoshiyasu IshiiShinroku Nakao (106 patents)Yoshiyasu IshiiTaira Hanashima (28 patents)Yoshiyasu IshiiHiroaki Matsuda (24 patents)Yoshiyasu IshiiSusumu Matsumoto (23 patents)Yoshiyasu IshiiKenshun Ishii (21 patents)Yoshiyasu IshiiTakehiko Takahashi (20 patents)Yoshiyasu IshiiKazuo Nagata (10 patents)Yoshiyasu IshiiYukio Ishige (7 patents)Yoshiyasu IshiiKiyoshi Hoshino (6 patents)Yoshiyasu IshiiMasako Mizugami (4 patents)Yoshiyasu IshiiHideo Saito (2 patents)Yoshiyasu IshiiKazunobu Koike (2 patents)Yoshiyasu IshiiKeiko Akimoto (2 patents)Yoshiyasu IshiiTetsumi Fujiyama (2 patents)Yoshiyasu IshiiHitoshi Kato (1 patent)Yoshiyasu IshiiHiroshi Matsuda (1 patent)Yoshiyasu IshiiKouichi Kobayashi (1 patent)Yoshiyasu IshiiTakashi Ishikura (1 patent)Yoshiyasu IshiiKunimasa Tsuchiya (1 patent)Yoshiyasu IshiiYuuichi Arai (1 patent)Yoshiyasu IshiiYoshio Yamamoto (1 patent)Yoshiyasu IshiiHiraku Kusubayashi (1 patent)Yoshiyasu IshiiJun Sekine (1 patent)Yoshiyasu IshiiTomiko Sato (1 patent)Yoshiyasu IshiiTetumi Fujiyama (1 patent)Yoshiyasu IshiiKuniko Sugita (1 patent)Yoshiyasu IshiiKenshiun Ishii (1 patent)Yoshiyasu IshiiMasako Mizukami (1 patent)Yoshiyasu IshiiEiichi Ishigaki (1 patent)Yoshiyasu IshiiYoshiyasu Ishii (127 patents)Shinroku NakaoShinroku Nakao (135 patents)Taira HanashimaTaira Hanashima (28 patents)Hiroaki MatsudaHiroaki Matsuda (93 patents)Susumu MatsumotoSusumu Matsumoto (29 patents)Kenshun IshiiKenshun Ishii (27 patents)Takehiko TakahashiTakehiko Takahashi (50 patents)Kazuo NagataKazuo Nagata (19 patents)Yukio IshigeYukio Ishige (7 patents)Kiyoshi HoshinoKiyoshi Hoshino (37 patents)Masako MizugamiMasako Mizugami (4 patents)Hideo SaitoHideo Saito (103 patents)Kazunobu KoikeKazunobu Koike (4 patents)Keiko AkimotoKeiko Akimoto (2 patents)Tetsumi FujiyamaTetsumi Fujiyama (2 patents)Hitoshi KatoHitoshi Kato (224 patents)Hiroshi MatsudaHiroshi Matsuda (85 patents)Kouichi KobayashiKouichi Kobayashi (19 patents)Takashi IshikuraTakashi Ishikura (8 patents)Kunimasa TsuchiyaKunimasa Tsuchiya (5 patents)Yuuichi AraiYuuichi Arai (5 patents)Yoshio YamamotoYoshio Yamamoto (4 patents)Hiraku KusubayashiHiraku Kusubayashi (1 patent)Jun SekineJun Sekine (1 patent)Tomiko SatoTomiko Sato (1 patent)Tetumi FujiyamaTetumi Fujiyama (1 patent)Kuniko SugitaKuniko Sugita (1 patent)Kenshiun IshiiKenshiun Ishii (1 patent)Masako MizukamiMasako Mizukami (1 patent)Eiichi IshigakiEiichi Ishigaki (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Combi Co., Ltd. (123 from 169 patents)

2. Combi Corporation (4 from 192 patents)


127 patents:

1. D333389 - Car baby bed

2. D328196 - High chair

3. D323192 - Musical mobile

4. D322641 - Toy vehicle

5. D321599 - Chair for a baby

6. D320370 - Baby stroller

7. D320049 - Tetherer rattle toy

8. D318305 - Toy xylophone

9. D317792 - Toy harmonica

10. D317793 - Toy tambourine

11. D317334 - Toy vehicle

12. D315179 - Combined toy drum and drum stick

13. D315177 - Toy accordion

14. D315178 - Toy piano

15. D314986 - Toy saxophone

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9/10/2025
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