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For the Inventor, By the Inventor

Ikeda, Japan

Izumi Osawa

USPTO Granted Patents = 74

Average Co-Inventor Count = 3.5

ph-index = 12

Forward Citations = 577(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 832,880 
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
Organic Photosensitive Member
Electrostatic Charging
Amorphous Carbon Layer
Image Formation Process
Developer Composition
Protective Layer Technology
Cleaning Device
Magnetic Particle Member
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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