Growing community of inventors

Saitama, Japan

Takao Hasegawa

Average Co-Inventor Count = 3.26

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 = 20

Takao HasegawaKiyoshi Une (1 patent)Takao HasegawaRichard P Heggs (1 patent)Takao HasegawaToshihiro Murayama (1 patent)Takao HasegawaTomoyasu Takahashi (1 patent)Takao HasegawaKatsumi Fujimoto (1 patent)Takao HasegawaJohn P Frechette (1 patent)Takao HasegawaKoichiro Mino (1 patent)Takao HasegawaTadao Senba (1 patent)Takao HasegawaShizuo Toyoda (1 patent)Takao HasegawaHideya Itoh (1 patent)Takao HasegawaTaro Seki (1 patent)Takao HasegawaKazutaka Fujii (1 patent)Takao HasegawaTakao Hasegawa (4 patents)Kiyoshi UneKiyoshi Une (27 patents)Richard P HeggsRichard P Heggs (13 patents)Toshihiro MurayamaToshihiro Murayama (10 patents)Tomoyasu TakahashiTomoyasu Takahashi (9 patents)Katsumi FujimotoKatsumi Fujimoto (4 patents)John P FrechetteJohn P Frechette (3 patents)Koichiro MinoKoichiro Mino (3 patents)Tadao SenbaTadao Senba (2 patents)Shizuo ToyodaShizuo Toyoda (2 patents)Hideya ItohHideya Itoh (2 patents)Taro SekiTaro Seki (2 patents)Kazutaka FujiiKazutaka Fujii (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Zexel Gmbh (2 from 382 patents)

2. Fuji Xerox Co., Ltd. (1 from 11,665 patents)

3. Valeo Japan Co., Ltd. (1 from 67 patents)

4. Japan Kanigen Co. Ltd. (1 from 3 patents)


4 patents:

1. 8669305 - Polyamideimide-based film coating composition

2. 7554679 - Image forming apparatus, image forming method, and image forming program

3. 6190146 - Member for compressor, manufacturing method for the member, and scroll compressor

4. 5897965 - Electrolessly plated nickel/phosphorus/boron system coatings and machine

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as of
12/19/2025
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