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For the Inventor, By the Inventor

Toyonaka, Japan

Hitoshi Saito

This inventor holds 21 USPTO granted patents and 1 EPO patent, primarily in Image Forming Technology. Top assignees: Minolta Camera Kabushiki Kaisha, Minolta Company, Ltd., Ashimori Kogyo Kabushiki Kaisha. Active years: 1989-2004.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hitoshi Saito. Retrieved from https://idiyas.com/inventor/hitoshi-saito-xi0vqope

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Calculating rank
USPTO Granted Patents = 21

% Patents Active = 100.0


Average Co-Inventor Count = 3.0

ph-index = 9

Forward Citations = 257(Granted Patents)


Location History:

  • Moriguchi, JP (1989)
  • Suita, JP (1991 - 1992)
  • Machida, JP (1991 - 1994)
  • Mie-ken, JP (1996 - 1999)
  • Toyonaka, JP (1997 - 1999)
  • Osaka, JP (1991 - 2004)
  • Saku, JP (2004)
  • Sapporo, JP (2004)

Company Filing History:

goldMedal7 out of 2,979 
 
Minolta Camera Kabushiki Kaisha
 patents
silverMedal5 out of 2,816 
 
Minolta Company, Ltd.
 patents
bronzeMedal4 out of 23 
 
Ashimori Kogyo Kabushiki Kaisha
 patents
4. 4 out of 9 
 
Tokyo Gas Kabushiki Kaisha
 patents
5. 1 out of 148 
 
Ashimori Industry Co., Ltd.
 patents
6. 1 out of 1 
 
Ashimori Tokyo Kabushiki Kaisha
 patent
7. 3 out of 834,601 
Other
 patents
where one patent can have more than one assignee

Years Active: 1989-2004

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Areas of Expertise:
Image Forming Apparatus
Electrophotographic
Charging Device
Repairing Material
Dielectric Filter
Pipeline Structure
Residual Charge Erasing
Voltage Limiter
Developing Bias Power
Shatter Testing
Cleaning Method
Rotating Brush
21 patents (USPTO):Explore Patents
1. 6796334 - Duct repairing material, repairing structure, and repairing method (2004-09-28),
2. 6766046 - Plate glass shatter testing method, device, imaging method for glass testing and image signal processing method (2004-07-20),
3. 6765459 - Laminated dielectric resonator and laminated dielectric filter (2004-07-20),
4. 5940660 - Charging device and image forming apparatus (1999-08-17),
5. 5885674 - Lining material for pipelines and method for manufacturing the same (1999-03-23),
6. 5857494 - Pipeline structure with a lining material, an end structure of said (1999-01-12),
7. 5845172 - Image forming apparatus having rotatable charging brush with varying (1998-12-01),
8. 5689777 - Image forming apparatus having contact charger (1997-11-18),
9. 5671778 - Repairing tube, method for repairing pipe lines therewith and method for (1997-09-30),
10. 5587775 - Image forming apparatus with rotating brush for charging (1996-12-24),
11. 5541717 - Cleaning method for contact charging means in image forming apparatus (1996-07-30),
12. 5351110 - Image forming apparatus adapted for reversal developing process which is (1994-09-27),
13. 5287152 - Electric charge supplying device and system employing the same (1994-02-15),
14. 5287146 - Contact type charging device having voltage limiter (1994-02-15),
15. 5272504 - Device for erasing residual charge on photosensitive member (1993-12-21),

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Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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