Growing community of inventors

Saitama, Japan

Kiyoshi Iwai

Average Co-Inventor Count = 5.60

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 = 43

Kiyoshi IwaiMasami Tsuchida (3 patents)Kiyoshi IwaiFumihiko Miyamoto (2 patents)Kiyoshi IwaiKiichiro Koguchi (2 patents)Kiyoshi IwaiHisashi Yagi (2 patents)Kiyoshi IwaiToshio Ohtani (2 patents)Kiyoshi IwaiHiroshi Kawaguchi (2 patents)Kiyoshi IwaiJunichi Yoshio (1 patent)Kiyoshi IwaiMasami Suzuki (1 patent)Kiyoshi IwaiKiyoshi Iwai (3 patents)Masami TsuchidaMasami Tsuchida (21 patents)Fumihiko MiyamotoFumihiko Miyamoto (3 patents)Kiichiro KoguchiKiichiro Koguchi (3 patents)Hisashi YagiHisashi Yagi (2 patents)Toshio OhtaniToshio Ohtani (2 patents)Hiroshi KawaguchiHiroshi Kawaguchi (2 patents)Junichi YoshioJunichi Yoshio (94 patents)Masami SuzukiMasami Suzuki (9 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Pioneer Electronic Corporation (3 from 2,861 patents)


3 patents:

1. 5121269 - Digital audio tape recorder and music program jump selecting method

2. 5079651 - Digital audio tape recorder and music program jump selecting method

3. 4937576 - Dither circuit responsive to zero input signal level

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as of
1/8/2026
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