Growing community of inventors

Higashikurume, Japan

Yutaka Oku

Average Co-Inventor Count = 1.74

ph-index = 8

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 = 394

Yutaka OkuKunihiko Takahashi (4 patents)Yutaka OkuYuichi Aizawa (2 patents)Yutaka OkuKanji Iinuma (1 patent)Yutaka OkuKenichi Shinoda (1 patent)Yutaka OkuTakao Horie (1 patent)Yutaka OkuYutaka Oku (9 patents)Kunihiko TakahashiKunihiko Takahashi (15 patents)Yuichi AizawaYuichi Aizawa (32 patents)Kanji IinumaKanji Iinuma (42 patents)Kenichi ShinodaKenichi Shinoda (2 patents)Takao HorieTakao Horie (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Daiwa Golf Co., Ltd. (5 from 43 patents)

2. Daiwa Seiko, Inc. (4 from 602 patents)


9 patents:

1. D410514 - Golf club head

2. D397180 - Golf club head

3. 5669824 - Iron club and iron club set

4. D380512 - Golf club head

5. D369393 - Golf putter head

6. 5465968 - Golf clubhead having beryllium face plate

7. D363748 - Golf club head

8. D360444 - Golf club head

9. 5411264 - Golf club head

Please report any incorrect information to support@idiyas.com
idiyas.com
as of
1/2/2026
Loading…