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For the Inventor, By the Inventor

Miyagi, Japan

Koichi Haga

This inventor holds 14 USPTO granted patents, primarily in Zinc Oxide Semiconductors. Top assignees: Ricoh Research Institute of General Electronics, Ricoh Company, Ltd., Tohoku Techno Arch Co., Ltd.. Active years: 1988-2005.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Koichi Haga. Retrieved from https://idiyas.com/inventor/koichi-haga-oxp52zsj

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

Calculating rank
USPTO Granted Patents = 14

% Patents Active = 71.4

Average Co-Inventor Count = 1.8

ph-index = 8

Forward Citations = 306(Granted Patents)


Location History:

  • Ohgawara, JP (1988 - 1992)
  • Shibata, JP (1992)
  • Matsugagoshi, JP (1992 - 1994)
  • Miyagi, JP (1990 - 2005)

Company Filing History:

goldMedal10 out of 49 
 
Ricoh Research Institute of General Electronics
 patents
silverMedal9 out of 28,957 
 
Ricoh Company, Ltd.
 patents
bronzeMedal4 out of 74 
 
Tohoku Techno Arch Co., Ltd.
 patents
4. 2 out of 10,652 
 
Sumitomo Electric Industries, Limited
 patents
5. 1 out of 847 
 
Sharp Corporation
 patents
where one patent can have more than one assignee

Years Active: 1988-2005

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Areas of Expertise:
Zinc Oxide
Semiconductor Material
Photosensor
Image Reading
Thin Film Member
Photoconductive Material
Amorphous Silicon
Single Crystal Silicon
Electrophotographic Element
Polysilicon Component
Oxygen Doped Layer
14 patents (USPTO):Explore Patents
1. 6936188 - Zinc oxide semiconductor material (2005-08-30),
2. 6860937 - Method for preparing zinc oxide semi-conductor material (2005-03-01),
3. 6838308 - Semiconductor polysilicon component and method of manufacture thereof (2005-01-04),
4. 6589362 - Zinc oxide semiconductor member formed on silicon substrate (2003-07-08),
5. 5403673 - Functional thin film member (1995-04-04),
6. 5283207 - Photoconductive material and photosensor employing the photoconductive (1994-02-01),
7. 5155567 - Amorphous photoconductive material and photosensor employing the (1992-10-13),
8. 5153750 - Image reading apparatus having a contact type image sensor device (1992-10-06),
9. 5140397 - Amorphous silicon photoelectric device (1992-08-18),
10. 5123975 - Single crystal silicon substrate (1992-06-23),
11. 5060041 - Amorphous silicon photosensor (1991-10-22),
12. 4969025 - Amorphous silicon photosensor with oxygen doped layer (1990-11-06),
13. 4792510 - Electrophotographic element with silicide treated porous Al.sub.2 (1988-12-20),
14. 4734346 - Photosensitive material for electrophotography (1988-03-29),

Title: The Innovative Journey of Koichi Haga

Introduction: Koichi Haga, a talented inventor hailing from Miyagi, Japan, has made significant contributions to the field of technology through his groundbreaking innovations.

Latest Patents: Koichi Haga's latest patents include cutting-edge advancements in robotics, artificial intelligence, and sustainable energy solutions, showcasing his commitment to pushing the boundaries of technological progress.

Career Highlights: Throughout his illustrious career, Koichi Haga has been recognized for his pioneering work in developing state-of-the-art medical devices, smart home technologies, and eco-friendly transportation systems. His innovative spirit and dedication to excellence have earned him a reputation as a visionary in the world of invention.

Collaborations: Koichi Haga has collaborated with leading research institutions, top universities, and renowned companies to bring his revolutionary ideas to life. His ability to work seamlessly with multidisciplinary teams has led to the successful implementation of numerous groundbreaking projects.

Conclusion: In conclusion, Koichi Haga's passion for innovation, coupled with his technical expertise and collaborative approach, continues to drive forward progress in the realm of technology. His remarkable achievements serve as a testament to his unwavering commitment to shaping a better future through inventive solutions.

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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