Growing community of inventors

Tokyo, Japan

Keisaku Ishihara

Average Co-Inventor Count = 8.00

ph-index = 1

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 = 21

Keisaku IshiharaShin Sekiya (1 patent)Keisaku IshiharaYoshinori Shirafuji (1 patent)Keisaku IshiharaNoboru Masuda (1 patent)Keisaku IshiharaHideto Nakao (1 patent)Keisaku IshiharaMakoto Tsukiji (1 patent)Keisaku IshiharaShinsuke Miki (1 patent)Keisaku IshiharaTakeshi Izawa (1 patent)Keisaku IshiharaKeisaku Ishihara (1 patent)Shin SekiyaShin Sekiya (37 patents)Yoshinori ShirafujiYoshinori Shirafuji (12 patents)Noboru MasudaNoboru Masuda (9 patents)Hideto NakaoHideto Nakao (7 patents)Makoto TsukijiMakoto Tsukiji (7 patents)Shinsuke MikiShinsuke Miki (6 patents)Takeshi IzawaTakeshi Izawa (5 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Mitsubishi Denki Kabushiki Kaisha (1 from 21,351 patents)


1 patent:

1. 6189322 - Refrigerant-circulating system, and refrigerant compressor and refrigeration cycle employing the refrigerant compressor

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1/7/2026
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