Growing community of inventors

Kanagawa, Japan

Keiji Ishiguro

Average Co-Inventor Count = 3.06

ph-index = 7

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 = 308

Keiji IshiguroSumitake Kobayashi (4 patents)Keiji IshiguroTakashi Kawasaki (4 patents)Keiji IshiguroKen Murata (4 patents)Keiji IshiguroFumitake Abe (3 patents)Keiji IshiguroMasashi Murakami (3 patents)Keiji IshiguroAtsuo Matsunaga (3 patents)Keiji IshiguroTakayuki Matsui (2 patents)Keiji IshiguroYoshio Mori (2 patents)Keiji IshiguroKazuhide Kobayashi (2 patents)Keiji IshiguroSatoru Ueyama (2 patents)Keiji IshiguroMasayuki Kudo (2 patents)Keiji IshiguroToshimi Sato (2 patents)Keiji IshiguroMari Ito (2 patents)Keiji IshiguroYasunari Kida (2 patents)Keiji IshiguroTatsuru Miyata (2 patents)Keiji IshiguroShigeo Ichikawa (2 patents)Keiji IshiguroYasushi Saitoh (2 patents)Keiji IshiguroAtsuhiro Ito (1 patent)Keiji IshiguroKeiji Ishiguro (11 patents)Sumitake KobayashiSumitake Kobayashi (7 patents)Takashi KawasakiTakashi Kawasaki (7 patents)Ken MurataKen Murata (6 patents)Fumitake AbeFumitake Abe (5 patents)Masashi MurakamiMasashi Murakami (3 patents)Atsuo MatsunagaAtsuo Matsunaga (3 patents)Takayuki MatsuiTakayuki Matsui (10 patents)Yoshio MoriYoshio Mori (9 patents)Kazuhide KobayashiKazuhide Kobayashi (6 patents)Satoru UeyamaSatoru Ueyama (3 patents)Masayuki KudoMasayuki Kudo (3 patents)Toshimi SatoToshimi Sato (3 patents)Mari ItoMari Ito (2 patents)Yasunari KidaYasunari Kida (2 patents)Tatsuru MiyataTatsuru Miyata (2 patents)Shigeo IchikawaShigeo Ichikawa (2 patents)Yasushi SaitohYasushi Saitoh (2 patents)Atsuhiro ItoAtsuhiro Ito (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Fuji Xerox Co., Ltd. (6 from 11,665 patents)

2. Fujitsu Corporation (5 from 39,237 patents)


11 patents:

1. 9881243 - Image forming apparatus having deployment configurations

2. 9747534 - Printing system with visual recognition unit

3. 9323197 - History storage device, image forming apparatus and non-transitory computer readable medium storing program

4. 7173721 - Multifunction machine, server, multifunction machine/server system and program recording medium

5. 6937354 - Multi-function unit, server and network system having multi-function unit

6. 6869238 - Printing control program, printing control system, and printing control method

7. 6434343 - Composite machine, server, composite machine-server system, and program recording medium

8. 6292267 - Network printer apparatus and LAN network system

9. 6246487 - Multi-function unit, server and network system having multi-function unit

10. 5982994 - Network printer apparatus and LAN network system

11. 5505549 - Character resource utilizing system

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as of
12/19/2025
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