Growing community of inventors

Tokyo, Japan

Ryuichi Murasaki

Average Co-Inventor Count = 1.73

ph-index = 22

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 = 1,270

Ryuichi MurasakiMitsuru Akeno (14 patents)Ryuichi MurasakiToshiaki Takizawa (13 patents)Ryuichi MurasakiTsuyoshi Minato (12 patents)Ryuichi MurasakiKeisuke Sakakibara (7 patents)Ryuichi MurasakiTomonari Yoshida (4 patents)Ryuichi MurasakiYoshitomo Iyoda (4 patents)Ryuichi MurasakiGenta Matsumura (4 patents)Ryuichi MurasakiShinichi Daijyogo (4 patents)Ryuichi MurasakiHisashi Yoneshima (3 patents)Ryuichi MurasakiShinichi Imai (3 patents)Ryuichi MurasakiMitsuhisa Okawa (3 patents)Ryuichi MurasakiWolfgang Coronel (3 patents)Ryuichi MurasakiCraig Jay Graham (3 patents)Ryuichi MurasakiNobuo Fujisawa (3 patents)Ryuichi MurasakiYasutoshi Nozawa (3 patents)Ryuichi MurasakiHiroshi Yoshida (2 patents)Ryuichi MurasakiYoshinobu Takahashi (2 patents)Ryuichi MurasakiHissai Nishiyama (2 patents)Ryuichi MurasakiWanli Zhang (2 patents)Ryuichi MurasakiEiichi Sasada (2 patents)Ryuichi MurasakiHikaru Okuyama (2 patents)Ryuichi MurasakiYuichi Masuda (2 patents)Ryuichi MurasakiTsutomu Yamada (1 patent)Ryuichi MurasakiYoshio Matsuda (1 patent)Ryuichi MurasakiHitoshi Kaneko (1 patent)Ryuichi MurasakiToru Yamamoto (1 patent)Ryuichi MurasakiKiyoshi Oda (1 patent)Ryuichi MurasakiTetsuya Yoshino (1 patent)Ryuichi MurasakiMineto Terada (18 patents)Ryuichi MurasakiNoritaka Tsubata (1 patent)Ryuichi MurasakiYutaka Tominaga (1 patent)Ryuichi MurasakiTakefumi Adachi (1 patent)Ryuichi MurasakiShinsuke Saiga (1 patent)Ryuichi MurasakiKenji Dono (1 patent)Ryuichi MurasakiShintaro Ohsugi (1 patent)Ryuichi MurasakiTetsuya Fukuzawa (1 patent)Ryuichi MurasakiTomohiro Suenaga (1 patent)Ryuichi MurasakiTakao Kanada (1 patent)Ryuichi MurasakiYuka Makino (1 patent)Ryuichi MurasakiImai Shinichi (0 patent)Ryuichi MurasakiYuichi Masuda (0 patent)Ryuichi MurasakiRyuichi Murasaki (78 patents)Mitsuru AkenoMitsuru Akeno (40 patents)Toshiaki TakizawaToshiaki Takizawa (53 patents)Tsuyoshi MinatoTsuyoshi Minato (38 patents)Keisuke SakakibaraKeisuke Sakakibara (8 patents)Tomonari YoshidaTomonari Yoshida (15 patents)Yoshitomo IyodaYoshitomo Iyoda (13 patents)Genta MatsumuraGenta Matsumura (6 patents)Shinichi DaijyogoShinichi Daijyogo (5 patents)Hisashi YoneshimaHisashi Yoneshima (19 patents)Shinichi ImaiShinichi Imai (17 patents)Mitsuhisa OkawaMitsuhisa Okawa (16 patents)Wolfgang CoronelWolfgang Coronel (13 patents)Craig Jay GrahamCraig Jay Graham (10 patents)Nobuo FujisawaNobuo Fujisawa (10 patents)Yasutoshi NozawaYasutoshi Nozawa (5 patents)Hiroshi YoshidaHiroshi Yoshida (64 patents)Yoshinobu TakahashiYoshinobu Takahashi (23 patents)Hissai NishiyamaHissai Nishiyama (8 patents)Wanli ZhangWanli Zhang (8 patents)Eiichi SasadaEiichi Sasada (5 patents)Hikaru OkuyamaHikaru Okuyama (4 patents)Yuichi MasudaYuichi Masuda (2 patents)Tsutomu YamadaTsutomu Yamada (65 patents)Yoshio MatsudaYoshio Matsuda (57 patents)Hitoshi KanekoHitoshi Kaneko (52 patents)Toru YamamotoToru Yamamoto (43 patents)Kiyoshi OdaKiyoshi Oda (40 patents)Tetsuya YoshinoTetsuya Yoshino (33 patents)Mineto TeradaMineto Terada (18 patents)Noritaka TsubataNoritaka Tsubata (15 patents)Yutaka TominagaYutaka Tominaga (15 patents)Takefumi AdachiTakefumi Adachi (14 patents)Shinsuke SaigaShinsuke Saiga (8 patents)Kenji DonoKenji Dono (7 patents)Shintaro OhsugiShintaro Ohsugi (5 patents)Tetsuya FukuzawaTetsuya Fukuzawa (4 patents)Tomohiro SuenagaTomohiro Suenaga (3 patents)Takao KanadaTakao Kanada (2 patents)Yuka MakinoYuka Makino (1 patent)Imai ShinichiImai Shinichi (0 patent)Yuichi MasudaYuichi Masuda (0 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Ykk Corporation (55 from 1,383 patents)

2. Yoshida Kogyo K.k. (23 from 1,145 patents)


78 patents:

1. 10993547 - End member for fastening cover material

2. 10820719 - Skin-material fixing tool

3. 10618800 - Skin-material fixing clip

4. 10426231 - Molded surface fastener, cushion body, cushion body manufacturing method, and molding die

5. 9888746 - Molded surface fastener

6. 9783090 - Skin material fastening structure and skin material removing tool

7. 9663007 - Cover material fastening clip

8. 9517926 - Cover-material fastening cord

9. 9445650 - Male surface fastener member for use in a cushion body mold and manufacturing method thereof

10. 9061882 - Fastening member

11. 9004591 - Fixture unit and cover fixing method

12. 8857018 - Clip for fastening surface skin material

13. 8795564 - Male surface fastener member for use in a cushion body mold and manufacturing method thereof

14. 7998548 - Male surface fastener member for use in a cushion body mold and manufacturing method thereof

15. 7493676 - Hook fastener structures

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12/28/2025
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