Growing community of inventors

Hikone, Japan

Takeo Iijima

Average Co-Inventor Count = 7.08

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 = 11

Takeo IijimaMasamichi Miyaguchi (5 patents)Takeo IijimaTakayoshi Tanizawa (5 patents)Takeo IijimaDaisuke Tsukada (5 patents)Takeo IijimaFumihiro Nishio (4 patents)Takeo IijimaYuichi Nishibori (4 patents)Takeo IijimaSatoshi Kajiyama (3 patents)Takeo IijimaMotoharu Muto (1 patent)Takeo IijimaShinji Tsutsui (1 patent)Takeo IijimaJunji Nakamura (1 patent)Takeo IijimaYuki Yoda (1 patent)Takeo IijimaYousuke Kurata (1 patent)Takeo IijimaTakeo Iijima (5 patents)Masamichi MiyaguchiMasamichi Miyaguchi (13 patents)Takayoshi TanizawaTakayoshi Tanizawa (11 patents)Daisuke TsukadaDaisuke Tsukada (10 patents)Fumihiro NishioFumihiro Nishio (11 patents)Yuichi NishiboriYuichi Nishibori (7 patents)Satoshi KajiyamaSatoshi Kajiyama (5 patents)Motoharu MutoMotoharu Muto (14 patents)Shinji TsutsuiShinji Tsutsui (4 patents)Junji NakamuraJunji Nakamura (4 patents)Yuki YodaYuki Yoda (3 patents)Yousuke KurataYousuke Kurata (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Panasonic Electric Works Co., Ltd. (3 from 394 patents)

2. Panasonic Corporation (1 from 16,453 patents)

3. Matsushita Electric Works, Ltd. (1 from 1,623 patents)


5 patents:

1. 8282584 - Massage chair

2. 8083700 - Chair type massager

3. 7708340 - Massage chair

4. 7690724 - Message chair

5. 7241271 - Massage machine

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as of
1/10/2026
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