Growing community of inventors

Tochigi, Japan

Hajime Katayama

Average Co-Inventor Count = 2.12

ph-index = 3

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 = 28

Hajime KatayamaAyumi Mihashi (5 patents)Hajime KatayamaShigehito Horiuchi (2 patents)Hajime KatayamaKuniyasu Aoki (2 patents)Hajime KatayamaSho Notoya (2 patents)Hajime KatayamaKouichi Hotta (1 patent)Hajime KatayamaMasafumi Nakagawa (1 patent)Hajime KatayamaMasatoshi Nishida (1 patent)Hajime KatayamaSeiji Katakura (1 patent)Hajime KatayamaToshiaki Kuroi (1 patent)Hajime KatayamaMasayuki Watarai (1 patent)Hajime KatayamaKanehiro Otani (1 patent)Hajime KatayamaKoichi Hotta (1 patent)Hajime KatayamaHajime Katayama (11 patents)Ayumi MihashiAyumi Mihashi (10 patents)Shigehito HoriuchiShigehito Horiuchi (7 patents)Kuniyasu AokiKuniyasu Aoki (3 patents)Sho NotoyaSho Notoya (2 patents)Kouichi HottaKouichi Hotta (10 patents)Masafumi NakagawaMasafumi Nakagawa (8 patents)Masatoshi NishidaMasatoshi Nishida (5 patents)Seiji KatakuraSeiji Katakura (5 patents)Toshiaki KuroiToshiaki Kuroi (2 patents)Masayuki WataraiMasayuki Watarai (2 patents)Kanehiro OtaniKanehiro Otani (1 patent)Koichi HottaKoichi Hotta (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Yachiyo Industry Co., Ltd. (10 from 124 patents)

2. Honda Motor Co., Ltd. (1 from 21,927 patents)

3. Nippon Sheet Glass Company, Limited (1 from 1,157 patents)

4. Yachiyo Kogyo Kabushiki Kaisha (1 from 12 patents)


11 patents:

1. 12138998 - Vehicle tailgate

2. 11667176 - Vehicle tailgate

3. 9718333 - Water discharge structure for sunroof device

4. 8246110 - Deflector mechanism for sunroof apparatus

5. 8240752 - Holding structure of guide pipe of sunroof apparatus

6. 8240751 - Vehicle roof system

7. 8231170 - Vehicle roof system

8. 8191962 - Deflector of sliding roof system

9. 8118357 - Frame structure of sunroof apparatus

10. 7628448 - Drain structure of roof panel

11. 7360826 - Sheet member with frame body

Please report any incorrect information to support@idiyas.com
idiyas.com
as of
1/6/2026
Loading…