Growing community of inventors

Sapporo, Japan

Kazuhiko Niikawa

Average Co-Inventor Count = 11.00

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 = 17

Kazuhiko Niikawa ↔ Ryuichiro Yoda (1 patent)Kazuhiko Niikawa ↔ Hiroshi Tanaka (1 patent)Kazuhiko Niikawa ↔ Yoshio Jyo (1 patent)Kazuhiko Niikawa ↔ Shigeo Mitsui (1 patent)Kazuhiko Niikawa ↔ Hideo Hosoda (1 patent)Kazuhiko Niikawa ↔ Takasi Iijima (1 patent)Kazuhiko Niikawa ↔ Giichi Suzuki (1 patent)Kazuhiko Niikawa ↔ Yasutaka Ochiai (1 patent)Kazuhiko Niikawa ↔ Tomiyasu Araki (1 patent)Kazuhiko Niikawa ↔ Takashi Ise (1 patent)Kazuhiko NiikawaKazuhiko Niikawa (1 patent)Ryuichiro YodaRyuichiro Yoda (4 patents)Hiroshi TanakaHiroshi Tanaka (3 patents)Yoshio JyoYoshio Jyo (3 patents)Shigeo MitsuiShigeo Mitsui (2 patents)Hideo HosodaHideo Hosoda (1 patent)Takasi IijimaTakasi Iijima (1 patent)Giichi SuzukiGiichi Suzuki (1 patent)Yasutaka OchiaiYasutaka Ochiai (1 patent)Tomiyasu ArakiTomiyasu Araki (1 patent)Takashi IseTakashi Ise (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Agency of Industrial Science and Technology (1 from 1,430 patents)

2. Nippon Zeon Company, Ltd. (1 from 598 patents)

3. Japan Gasoline Co., Ltd. (1 from 14 patents)


1 patent:

1. 4029550 - Process for the dry distallation of rubber

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