Growing community of inventors

Ehime, Japan

Takefumi Yanagihara

Average Co-Inventor Count = 3.16

ph-index = 2

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 = 7

Takefumi YanagiharaAkio Konishi (7 patents)Takefumi YanagiharaKoichiro Hirabayashi (5 patents)Takefumi YanagiharaYoshiyuki Saito (2 patents)Takefumi YanagiharaHiroshi Kanchiku (2 patents)Takefumi YanagiharaTatsuo Terao (1 patent)Takefumi YanagiharaHitoshi Yasutomi (1 patent)Takefumi YanagiharaYoshihiro Fujimoto (1 patent)Takefumi YanagiharaTakefumi Yanagihara (8 patents)Akio KonishiAkio Konishi (68 patents)Koichiro HirabayashiKoichiro Hirabayashi (81 patents)Yoshiyuki SaitoYoshiyuki Saito (56 patents)Hiroshi KanchikuHiroshi Kanchiku (10 patents)Tatsuo TeraoTatsuo Terao (4 patents)Hitoshi YasutomiHitoshi Yasutomi (3 patents)Yoshihiro FujimotoYoshihiro Fujimoto (3 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Matsushita Electric Industrial Co., Ltd. (8 from 27,375 patents)


8 patents:

1. 7248430 - Magnetic recording and reproduction apparatus

2. 7209315 - Magnetic recording and reproduction apparatus

3. 7209316 - Magnetic recording/reproducing device including a tape pull-out member having a projection for contacting a ramp surface

4. 6286775 - Magnetic recording apparatus

5. 6275351 - Magnetic recording/reproduction apparatus having a mechanism for moving a sub-chassis relative to a main chassis

6. 6256167 - Magnetic recording/reproduction apparatus having a mechanism for pulling a magnetic tape out of a cassette

7. 5867467 - Package relay terminal assembly

8. 5768048 - Tape cassette cover opening and closing device

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