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For the Inventor, By the Inventor

Ikeda, Japan

Izumi Osawa

This inventor holds 74 USPTO granted patents, primarily in Image Formation Technology (CPC class 430 ). Top assignees: Minolta Camera Kabushiki Kaisha, Minolta Company, Ltd., Toeisangyo Co., Ltd.. Active years: 1987-2001.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Izumi Osawa. Retrieved from https://idiyas.com/inventor/izumi-osawa

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

USPTO Granted Patents = 74

% Patents Active = 100.0

Average Co-Inventor Count = 3.5

ph-index = 12

Forward Citations = 580(Granted Patents)

Forward Citations (Not Self Cited) = 483(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Osaka, JP (1989 - 1996)
  • Ikeda, JP (1987 - 2001)

Company Filing History:

goldMedal67 out of 2,979 
 
Minolta Camera Kabushiki Kaisha
 patents
silverMedal6 out of 2,816 
 
Minolta Company, Ltd.
 patents
bronzeMedal1 out of 2 
 
Toeisangyo Co., Ltd.
 patents
4. 1 out of 834,453 
Other
 patents
where one patent can have more than one assignee

Years Active: 1987-2001

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Areas of Expertise:
Photosensitive Member
Image Forming Apparatus
Contact Charger
Ink Jet Recording Head
Electrostatic Charging
Organic Photosensitive Member
Protective Layer
Cleaning Device
Developer
Production Method
Magnetic Particle
Image Formation Method
74 patents (USPTO):Explore Patents
1. 6287374 - Pigment and process for producing the same, water base ink and process for producing the same (2001-09-11),
2. 6145966 - Ink jet recording head (2000-11-14),
3. 5623716 - Process for image forming using a photosensitive member having an (1997-04-22),
4. 5576807 - Image forming apparatus having a contact type charging device (1996-11-19),
5. 5572294 - Contact charger and image forming apparatus provided with same (1996-11-05),
6. 5568231 - Charging device for charging the surface of a photosensitive member in (1996-10-22),
7. 5557372 - Contact charger and image forming apparatus provided with same (1996-09-17),
8. 5552865 - Charging device and method for charging a charge-receiving member by a (1996-09-03),
9. 5536610 - Photosensitive member having surface protective layer with specified (1996-07-16),
10. 5504560 - Photosensitive member-protective shutter (1996-04-02),
11. 5504559 - Method for image formation (1996-04-02),
12. 5489973 - An electrically conductive member of an image forming apparatus (1996-02-06),
13. 5396317 - Magnetic particle-containing member for use in copying machine (1995-03-07),
14. 5376425 - Contact member for controlling an electrostatic state of a chargeable (1994-12-27),
15. 5371578 - Image forming apparatus including means for removing counter charged (1994-12-06),

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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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