Growing community of inventors

Tokyo, Japan

Keiko Shimada

Average Co-Inventor Count = 1.54

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 = 98

Keiko ShimadaHisashi Fujisaki (2 patents)Keiko ShimadaPatricia Lopez (1 patent)Keiko ShimadaShon Booker (1 patent)Keiko ShimadaRyan D White (1 patent)Keiko ShimadaVictor J Cee (1 patent)Keiko ShimadaTimothy David Cushing (1 patent)Keiko ShimadaXiaolin Hao (1 patent)Keiko ShimadaRyuhei Fujiwara (1 patent)Keiko ShimadaRyan Paul Wurz (1 patent)Keiko ShimadaBrian M Fox (1 patent)Keiko ShimadaYoungsook Shin (1 patent)Keiko ShimadaHilary Plake Beck (1 patent)Keiko ShimadaLewis D Pennington (1 patent)Keiko ShimadaSteven H Olson (1 patent)Keiko ShimadaStephanie Geuns-Meyer (1 patent)Keiko ShimadaJason Brooks Human (1 patent)Keiko ShimadaZihao Hua (1 patent)Keiko ShimadaXiao Mei Zheng (1 patent)Keiko ShimadaOleg Epstein (1 patent)Keiko ShimadaRyota Nakajima (1 patent)Keiko ShimadaNagasree Chakka (1 patent)Keiko ShimadaHoward Bregman (1 patent)Keiko ShimadaKosuke Sasaki (1 patent)Keiko ShimadaKazuhisa Okada (1 patent)Keiko ShimadaKenta Hibiya (1 patent)Keiko ShimadaShuyan Yi (1 patent)Keiko ShimadaHiroyuki Oono (1 patent)Keiko ShimadaJun Hirata (1 patent)Keiko ShimadaShinji Kakuda (1 patent)Keiko ShimadaShon Keith Booker (0 patent)Keiko ShimadaJason Human (0 patent)Keiko ShimadaJason Human (0 patent)Keiko ShimadaShon Keith Booker (0 patent)Keiko ShimadaKeiko Shimada (7 patents)Hisashi FujisakiHisashi Fujisaki (6 patents)Patricia LopezPatricia Lopez (43 patents)Shon BookerShon Booker (38 patents)Ryan D WhiteRyan D White (36 patents)Victor J CeeVictor J Cee (35 patents)Timothy David CushingTimothy David Cushing (31 patents)Xiaolin HaoXiaolin Hao (28 patents)Ryuhei FujiwaraRyuhei Fujiwara (28 patents)Ryan Paul WurzRyan Paul Wurz (27 patents)Brian M FoxBrian M Fox (25 patents)Youngsook ShinYoungsook Shin (23 patents)Hilary Plake BeckHilary Plake Beck (21 patents)Lewis D PenningtonLewis D Pennington (20 patents)Steven H OlsonSteven H Olson (19 patents)Stephanie Geuns-MeyerStephanie Geuns-Meyer (17 patents)Jason Brooks HumanJason Brooks Human (14 patents)Zihao HuaZihao Hua (11 patents)Xiao Mei ZhengXiao Mei Zheng (10 patents)Oleg EpsteinOleg Epstein (10 patents)Ryota NakajimaRyota Nakajima (10 patents)Nagasree ChakkaNagasree Chakka (9 patents)Howard BregmanHoward Bregman (7 patents)Kosuke SasakiKosuke Sasaki (7 patents)Kazuhisa OkadaKazuhisa Okada (4 patents)Kenta HibiyaKenta Hibiya (2 patents)Shuyan YiShuyan Yi (2 patents)Hiroyuki OonoHiroyuki Oono (2 patents)Jun HirataJun Hirata (1 patent)Shinji KakudaShinji Kakuda (1 patent)Shon Keith BookerShon Keith Booker (0 patent)Jason HumanJason Human (0 patent)Jason HumanJason Human (0 patent)Shon Keith BookerShon Keith Booker (0 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Nec Corporation (6 from 35,705 patents)

2. Amgen Inc. (1 from 1,974 patents)

3. Teijin Pharma Limited (1 from 125 patents)


7 patents:

1. 9365522 - Pyrazole amide derivative

2. 5416887 - Method and system for speech recognition without noise interference

3. 5222121 - Voice recognition dialing unit

4. 5201004 - Speech recognition method with noise reduction and a system therefor

5. 5022068 - Branched telephone system

6. 4955055 - Loudspeaking telephone with a frequency shifting circuit

7. 4899380 - Loudspeaking telephone with a variable gain circuit

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as of
12/27/2025
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