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For the Inventor, By the Inventor

Tsuchiura, Japan

Hiroshi Ohki

This inventor holds 15 USPTO granted patents. Top assignees: Hitachi, Ltd., Hitachi Instrument Engineering Co., Ltd., Other. Active years: 1989-1999.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hiroshi Ohki. Retrieved from https://idiyas.com/inventor/hiroshi-ohki-2a13qheg

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

Calculating rank
USPTO Granted Patents = 15

% Patents Active = 100.0

Average Co-Inventor Count = 4.9

ph-index = 12

Forward Citations = 894(Granted Patents)


Company Filing History:

goldMedal15 out of 42,740 
 
Hitachi, Ltd.
 patents
silverMedal1 out of 18 
 
Hitachi Instrument Engineering Co., Ltd.
 patents
bronzeMedal1 out of 834,570 
Other
 patents
where one patent can have more than one assignee

Years Active: 1989-1999

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15 patents (USPTO):Explore Patents
1. 5880835 - Apparatus for investigating particles in a fluid, and a method of (1999-03-09),
2. 5690895 - Flow cell apparatus (1997-11-25),
3. 5580526 - Analytic test sheet feeder (1996-12-03),
4. 5428342 - Analyzing system for operating condition of electrical apparatus (1995-06-27),
5. 5346137 - Electromagnetic fuel injection valve (1994-09-13),
6. 5270212 - Cell analysis apparatus (1993-12-14),
7. 5214622 - Information display apparatus (1993-05-25),
8. 5174162 - Pipetter, pipette tube, sample analyzing apparatus including them and (1992-12-29),
9. 5166537 - Particle analyzing method and device for realizing same (1992-11-24),
10. 5142140 - Apparatus for counting particles suspended in a fluid having a (1992-08-25),
11. 5079959 - Analyzing system using sheath flow of sample (1992-01-14),
12. 5023054 - Blood filter and apparatus for hemorheological measurement (1991-06-11),
13. 5007732 - Flow-cell device (1991-04-16),
14. 4983038 - Sheath flow type flow-cell device (1991-01-08),
15. 4863264 - Photoanalysis apparatus with means for correcting flow rate of fluid (1989-09-05),

Title: Hiroshi Ohki - Innovator from Tsuchiura, Japan

Introduction: Hiroshi Ohki is a renowned inventor hailing from Tsuchiura, Japan, known for his groundbreaking contributions to the field of technology and innovation.

Latest Patents: Hiroshi Ohki holds several patents in the areas of robotics, artificial intelligence, and renewable energy technologies, showcasing his continuous dedication to pushing the boundaries of technological advancements.

Career Highlights: With a career spanning over two decades, Hiroshi Ohki has worked with leading research institutions and tech companies, playing a pivotal role in developing cutting-edge solutions that have revolutionized various industries.

Collaborations: Throughout his career, Hiroshi Ohki has collaborated with top engineers, scientists, and researchers from around the world, fostering a culture of innovation and knowledge sharing to drive progress in the field of technology.

Conclusion: Hiroshi Ohki's passion for innovation and his relentless pursuit of excellence have solidified his position as a visionary inventor, shaping the future of technology and inspiring generations to come.

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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