Growing community of inventors

Yokohama, Japan

Yoji Takeuchi

Average Co-Inventor Count = 2.25

ph-index = 4

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 = 47

Yoji TakeuchiMasaru Miyamoto (11 patents)Yoji TakeuchiShigeru Miyazaki (8 patents)Yoji TakeuchiKiyoshi Iwamoto (2 patents)Yoji TakeuchiTadashi Kamagata (2 patents)Yoji TakeuchiHideaki Tomi (2 patents)Yoji TakeuchiToshiyuki Terada (1 patent)Yoji TakeuchiKenji Sato (1 patent)Yoji TakeuchiNobuhiro Goto (1 patent)Yoji TakeuchiYusuke Kobayashi (1 patent)Yoji TakeuchiKatsuhiko Shiraishi (1 patent)Yoji TakeuchiSaki Hanatani (1 patent)Yoji TakeuchiNoriko Sakane (1 patent)Yoji TakeuchiMariayuri Kumagae (1 patent)Yoji TakeuchiTakayuki Fukawa (1 patent)Yoji TakeuchiHiroki Koketsu (1 patent)Yoji TakeuchiChihiro Nishijima (0 patent)Yoji TakeuchiYoji Takeuchi (19 patents)Masaru MiyamotoMasaru Miyamoto (28 patents)Shigeru MiyazakiShigeru Miyazaki (11 patents)Kiyoshi IwamotoKiyoshi Iwamoto (14 patents)Tadashi KamagataTadashi Kamagata (11 patents)Hideaki TomiHideaki Tomi (3 patents)Toshiyuki TeradaToshiyuki Terada (38 patents)Kenji SatoKenji Sato (20 patents)Nobuhiro GotoNobuhiro Goto (19 patents)Yusuke KobayashiYusuke Kobayashi (14 patents)Katsuhiko ShiraishiKatsuhiko Shiraishi (9 patents)Saki HanataniSaki Hanatani (2 patents)Noriko SakaneNoriko Sakane (2 patents)Mariayuri KumagaeMariayuri Kumagae (1 patent)Takayuki FukawaTakayuki Fukawa (1 patent)Hiroki KoketsuHiroki Koketsu (1 patent)Chihiro NishijimaChihiro Nishijima (0 patent)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Mitsubishi Pencil Kabushiki Kaisha (12 from 196 patents)

2. Konami Digital Entertainment Co., Ltd. (4 from 529 patents)

3. Mitsubishi Pencil Company, Limited (2 from 383 patents)

4. Mitsubishi Denki Kabushiki Kaisha (1 from 21,351 patents)


19 patents:

1. 11951393 - Game system, terminal apparatus, and recording medium

2. 10016687 - Game system, server device, control method for server device, program, and information recording medium

3. 9713773 - Game system, server device, control method for server device, program, and information recording medium

4. 9416286 - Ink composition for aqueous ballpoint pen

5. 9375642 - Network game system, control method of network game system, game device, control method of game device, program, and information storage medium

6. 7345100 - Water-based ink composition for ball-point pen

7. 7279512 - Water-based ink composition for ballpoint pen

8. 7179006 - Ink follower

9. 7179005 - Ink follower for water-based ink ballpoint pen

10. 6776829 - Water-based ink composition for writing utensil

11. 6613135 - Pseudo-plastic water based ink for ballpoint pen

12. 6605143 - Water based ink composition for writing instrument

13. 6599352 - Water-based ink composition for writing instrument

14. 6423127 - Pseudo-plastic water base ink for ball point pen

15. 6264729 - Water based ink composition for writing instrument

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as of
12/24/2025
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