Growing community of inventors

Hitachinaka, Japan

Masaru Ujigawa

Average Co-Inventor Count = 4.61

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

Masaru UjigawaNoboru Sugiura (2 patents)Masaru UjigawaJunichi Shimada (2 patents)Masaru UjigawaKatsuaki Fukatsu (2 patents)Masaru UjigawaKazutoshi Kobayashi (2 patents)Masaru UjigawaYoichi Anzo (2 patents)Masaru UjigawaEiichiro Kondo (2 patents)Masaru UjigawaToshiaki Kaminaga (2 patents)Masaru UjigawaKenji Nakabayashi (2 patents)Masaru UjigawaHiroshi Watanabe (2 patents)Masaru UjigawaHidetoshi Oishi (2 patents)Masaru UjigawaTakao Terakado (2 patents)Masaru UjigawaMasaru Ujigawa (4 patents)Noboru SugiuraNoboru Sugiura (71 patents)Junichi ShimadaJunichi Shimada (22 patents)Katsuaki FukatsuKatsuaki Fukatsu (20 patents)Kazutoshi KobayashiKazutoshi Kobayashi (18 patents)Yoichi AnzoYoichi Anzo (15 patents)Eiichiro KondoEiichiro Kondo (9 patents)Toshiaki KaminagaToshiaki Kaminaga (8 patents)Kenji NakabayashiKenji Nakabayashi (7 patents)Hiroshi WatanabeHiroshi Watanabe (6 patents)Hidetoshi OishiHidetoshi Oishi (3 patents)Takao TerakadoTakao Terakado (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Hitachi, Ltd. (4 from 42,508 patents)

2. Hitachi Car Engineering Co., Ltd. (2 from 248 patents)

3. Hitachi Automotive Engineering Co., Ltd. (2 from 152 patents)


4 patents:

1. 6055969 - Igniter for internal combustion engine having outer packing case

2. 5915367 - Igniter for internal combustion engine having outer packing case

3. 5842457 - Distributor for internal combustion engines

4. 5651352 - Distributor for internal combustion engines

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