Growing community of inventors

San Jose, CA, United States of America

Hiroaki Ishizuka

Average Co-Inventor Count = 2.63

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 = 344

Hiroaki IshizukaShogo Hyakutake (13 patents)Hiroaki IshizukaMinoru Aoshima (13 patents)Hiroaki IshizukaHiroshi Kitada (10 patents)Hiroaki IshizukaAkio Kizawa (10 patents)Hiroaki IshizukaYuichi Takamiya (1 patent)Hiroaki IshizukaYusuke Tamari (1 patent)Hiroaki IshizukaHiroaki Numata (1 patent)Hiroaki IshizukaHiroaki Ishizuka (18 patents)Shogo HyakutakeShogo Hyakutake (23 patents)Minoru AoshimaMinoru Aoshima (15 patents)Hiroshi KitadaHiroshi Kitada (72 patents)Akio KizawaAkio Kizawa (11 patents)Yuichi TakamiyaYuichi Takamiya (7 patents)Yusuke TamariYusuke Tamari (3 patents)Hiroaki NumataHiroaki Numata (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Ricoh Company, Ltd. (18 from 28,584 patents)

2. Ricoh Americas Corporation (12 from 52 patents)

3. Ricoh Corporation (5 from 233 patents)


18 patents:

1. 8566701 - Converting metadata for applications having different metadata formats

2. 8418189 - Switching among applications according to date-and-time of schedule item

3. 8261363 - Managing electronic data with identification data

4. 8059291 - System, computer program product and method for managing documents

5. 7877458 - System, computer program product and method for managing documents

6. 7860267 - System, computer program product and method for managing documents

7. 7830571 - System, apparatus and method for document management

8. 7809157 - System, computer program product and method for managing documents

9. 7752277 - System, computer program product and method for storing information in an application service provider

10. 7734715 - System, computer program product and method for managing documents

11. 7720758 - System, computer program product and method for managing bills issued from application service providers

12. 7673016 - System, computer program product and method for selecting an application service provider

13. 7340504 - System, computer program product and method for storing information in an application service provider

14. 7246158 - System, computer program product and method for selecting an application service provider

15. 7149784 - System, computer program product and method for exchanging documents with an application service provider at a predetermined time

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as of
1/6/2026
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