Growing community of inventors

Tokyo, Japan

Hidetaka Watanabe

Average Co-Inventor Count = 2.67

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 = 20

Hidetaka WatanabeTakashi Matsuda (3 patents)Hidetaka WatanabeShigehiro Itou (3 patents)Hidetaka WatanabeKanji Fukunaga (3 patents)Hidetaka WatanabeYoshisada Ishimoto (3 patents)Hidetaka WatanabeHidetaka Watanabe (6 patents)Takashi MatsudaTakashi Matsuda (186 patents)Shigehiro ItouShigehiro Itou (11 patents)Kanji FukunagaKanji Fukunaga (3 patents)Yoshisada IshimotoYoshisada Ishimoto (3 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

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

2. Other (2 from 833,002 patents)

3. Mitsubishi Electric Engineering Company, Limited (1 from 177 patents)


6 patents:

1. 6941566 - Disc system

2. 6392981 - Disc device

3. 6256279 - Disc system

4. 5323885 - Vibration damping device with grooves

5. 5101399 - Deck base locking device for recording playback unit

6. 4985884 - Disk shaped recording reproduction device

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as of
1/21/2026
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