Growing community of inventors

Hadano, Japan

Keiji Fujikawa

Average Co-Inventor Count = 6.40

ph-index = 3

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 = 69

Keiji FujikawaShinichi Kazui (4 patents)Keiji FujikawaHideaki Sasaki (3 patents)Keiji FujikawaMitsugu Shirai (3 patents)Keiji FujikawaYutaka Hashimoto (3 patents)Keiji FujikawaHitoshi Odashima (2 patents)Keiji FujikawaMakoto Matsuoka (2 patents)Keiji FujikawaIsamu Takaoka (2 patents)Keiji FujikawaHiroo Inoue (2 patents)Keiji FujikawaTerumi Saitoo (2 patents)Keiji FujikawaJunji Narita (2 patents)Keiji FujikawaYooichi Fujiwara (2 patents)Keiji FujikawaYoouichi Fukuoka (2 patents)Keiji FujikawaHiroyuki Doi (1 patent)Keiji FujikawaTakeji Shiokawa (1 patent)Keiji FujikawaTetsuhiro Yokoyama (1 patent)Keiji FujikawaTetsuhiro Yokayama (1 patent)Keiji FujikawaKeiji Fujikawa (6 patents)Shinichi KazuiShinichi Kazui (30 patents)Hideaki SasakiHideaki Sasaki (33 patents)Mitsugu ShiraiMitsugu Shirai (18 patents)Yutaka HashimotoYutaka Hashimoto (7 patents)Hitoshi OdashimaHitoshi Odashima (10 patents)Makoto MatsuokaMakoto Matsuoka (10 patents)Isamu TakaokaIsamu Takaoka (2 patents)Hiroo InoueHiroo Inoue (2 patents)Terumi SaitooTerumi Saitoo (2 patents)Junji NaritaJunji Narita (2 patents)Yooichi FujiwaraYooichi Fujiwara (2 patents)Yoouichi FukuokaYoouichi Fukuoka (2 patents)Hiroyuki DoiHiroyuki Doi (44 patents)Takeji ShiokawaTakeji Shiokawa (13 patents)Tetsuhiro YokoyamaTetsuhiro Yokoyama (2 patents)Tetsuhiro YokayamaTetsuhiro Yokayama (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Hitachi, Ltd. (6 from 42,485 patents)

2. Hitachi Computer Engineering Co., Ltd. (2 from 56 patents)


6 patents:

1. 6551449 - Thin electronic circuit component and method and apparatus for producing the same

2. 6203655 - Thin electronic circuit component and method and apparatus for producing the same

3. 6137687 - Printed circuit board, IC card, and manufacturing method thereof

4. 5745972 - Method of producing parts/substrate assemblies

5. 5520733 - Deposition apparatus and profile-following device suitable for

6. 5513427 - System for producing parts/substrate assemblies

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12/5/2025
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