Growing community of inventors

Fujisawa, Japan

Tohru Oyama

Average Co-Inventor Count = 11.00

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 = 13

Tohru OyamaYasuhiro Yamada (2 patents)Tohru OyamaTadashi Hatano (2 patents)Tohru OyamaTomonao Kikuchi (2 patents)Tohru OyamaTakayuki Nakao (2 patents)Tohru OyamaToshiaki Murai (2 patents)Tohru OyamaAkihiro Hayami (2 patents)Tohru OyamaTomoaki Shimotsu (2 patents)Tohru OyamaTadaaki Fujii (2 patents)Tohru OyamaMasayuki Miyoshi (2 patents)Tohru OyamaHidehiro Ikeuchi (2 patents)Tohru OyamaTohru Oyama (2 patents)Yasuhiro YamadaYasuhiro Yamada (93 patents)Tadashi HatanoTadashi Hatano (7 patents)Tomonao KikuchiTomonao Kikuchi (6 patents)Takayuki NakaoTakayuki Nakao (5 patents)Toshiaki MuraiToshiaki Murai (5 patents)Akihiro HayamiAkihiro Hayami (4 patents)Tomoaki ShimotsuTomoaki Shimotsu (3 patents)Tadaaki FujiiTadaaki Fujii (2 patents)Masayuki MiyoshiMasayuki Miyoshi (2 patents)Hidehiro IkeuchiHidehiro Ikeuchi (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Other (2 from 832,680 patents)


2 patents:

1. 6603110 - Temperature compensating circuit, temperature compensating logarithm conversion circuit and light receiver

2. 6426495 - Temperature compensating circuit, temperature compensating logarithm conversion circuit and light receiver

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as of
12/7/2025
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