Growing community of inventors

Kanagawa, Japan

Kohji Tsukahara

Average Co-Inventor Count = 5.21

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 = 1

Kohji TsukaharaShozo Murata (6 patents)Kohji TsukaharaAkihiro Fuchigami (6 patents)Kohji TsukaharaYoichi Okamoto (6 patents)Kohji TsukaharaYuusuke Taneda (5 patents)Kohji TsukaharaNobuaki Onagi (1 patent)Kohji TsukaharaYoshimichi Takano (1 patent)Kohji TsukaharaMasami Nishida (1 patent)Kohji TsukaharaYusuke Taneda (1 patent)Kohji TsukaharaHaruki Tokumaru (1 patent)Kohji TsukaharaDaiichi Koide (1 patent)Kohji TsukaharaTakeshi Kajiyama (1 patent)Kohji TsukaharaKohji Tsukahara (7 patents)Shozo MurataShozo Murata (21 patents)Akihiro FuchigamiAkihiro Fuchigami (13 patents)Yoichi OkamotoYoichi Okamoto (13 patents)Yuusuke TanedaYuusuke Taneda (10 patents)Nobuaki OnagiNobuaki Onagi (38 patents)Yoshimichi TakanoYoshimichi Takano (10 patents)Masami NishidaMasami Nishida (9 patents)Yusuke TanedaYusuke Taneda (8 patents)Haruki TokumaruHaruki Tokumaru (7 patents)Daiichi KoideDaiichi Koide (6 patents)Takeshi KajiyamaTakeshi Kajiyama (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Ricoh Company, Ltd. (7 from 28,584 patents)

2. Chotaro Engineering, Co. (1 from 4 patents)


7 patents:

1. 9604344 - Dry cleaning casing, dry cleaning apparatus and attachment method of screen plate

2. 9597716 - Dry-type cleaning chassis, dry-type cleaning device, and dry-type cleaning system

3. 9452454 - Dry type cleaning housing and dry type cleaning apparatus

4. 9421588 - Anti-cleanser dispersing element, object holder, and dry washing device

5. 9358589 - Dry type cleaning case and dry type cleaning device

6. 8713750 - Dry-type cleaning chassis and dry-type cleaning device

7. 8607259 - Disk laminate, disk cartridge, disk loading/unloading mechanism, disk conveying device, disk conveying mechanism, and thin disk driving system

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as of
1/9/2026
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