Growing community of inventors

Kiyose, Japan

Hideki Takayama

Average Co-Inventor Count = 4.17

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 = 77

Hideki Takayama ↔ Takao Ohsawa (3 patents)Hideki Takayama ↔ Gen Nagai (2 patents)Hideki Takayama ↔ Hikaru Kaji (2 patents)Hideki Takayama ↔ Hiroshi Koizumi (1 patent)Hideki Takayama ↔ Takeshi Abe (1 patent)Hideki Takayama ↔ Masatoshi Tanabe (1 patent)Hideki Takayama ↔ Hiroshi Ohsugi (1 patent)Hideki Takayama ↔ Michiaki Kotsuka (1 patent)Hideki Takayama ↔ Keiji Hikino (1 patent)Hideki Takayama ↔ Masao Takahashi (1 patent)Hideki Takayama ↔ Tsuneo Hisa (1 patent)Hideki Takayama ↔ Shuichi Hara (1 patent)Hideki TakayamaHideki Takayama (5 patents)Takao OhsawaTakao Ohsawa (9 patents)Gen NagaiGen Nagai (4 patents)Hikaru KajiHikaru Kaji (2 patents)Hiroshi KoizumiHiroshi Koizumi (59 patents)Takeshi AbeTakeshi Abe (54 patents)Masatoshi TanabeMasatoshi Tanabe (13 patents)Hiroshi OhsugiHiroshi Ohsugi (9 patents)Michiaki KotsukaMichiaki Kotsuka (5 patents)Keiji HikinoKeiji Hikino (4 patents)Masao TakahashiMasao Takahashi (1 patent)Tsuneo HisaTsuneo Hisa (1 patent)Shuichi HaraShuichi Hara (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Hitachi, Ltd. (5 from 42,485 patents)


5 patents:

1. D292630 - Clothes dryer

2. D292629 - Electric washing machine

3. D290052 - Electric washing machine

4. D285958 - Water filter

5. D276433 - Computer display

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as of
12/7/2025
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