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For the Inventor, By the Inventor

Hitachinaka, Japan

Noriyoshi Urushiwara

This inventor holds 15 USPTO granted patents and 5 EPO patents. Top assignees: Hitachi, Ltd., Hitachi Car Engineering Co., Ltd.. Active years: 1989-2021.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Noriyoshi Urushiwara. Retrieved from https://idiyas.com/inventor/noriyoshi-urushiwara

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

USPTO Granted Patents = 15

% Patents Active = 80.0

 

Average Co-Inventor Count = 2.6

ph-index = 4

Forward Citations = 76(Granted Patents)


Location History:

  • Katsuta, JP (1989 - 1996)
  • Hitachinaka, JP (2000 - 2008)
  • Tokyo, JP (2007 - 2021)

Company Filing History:

goldMedal15 out of 42,731 
 
Hitachi, Ltd.
 patents
silverMedal1 out of 248 
 
Hitachi Car Engineering Co., Ltd.
 patents
where one patent can have more than one assignee

Years Active: 1989-2021

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15 patents (USPTO):Explore Patents
1. 11211881 - Power conversion device and electric railroad vehicle equipped with power conversion device (2021-12-28),
2. 7453138 - Electronic circuit device and manufacturing method thereof (2008-11-18),
3. 7230320 - Electronic circuit device with reduced breaking and cracking (2007-06-12),
4. 7208816 - Electronic circuit device and manufacturing method thereof (2007-04-24),
5. 7207314 - Control circuit module, intake air passage body, engine electronic control device, and engine air intake system provided with the same (2007-04-24),
6. 7047939 - Control circuit module, intake air passage body, engine electronic control device, and engine air intake system provided with the same (2006-05-23),
7. 6892699 - Throttle body and air intake equipment for internal combustion engine (2005-05-17),
8. 6046584 - Internal combustion engine rotating position detector using a (2000-04-04),
9. 5581131 - Electronic distributor ignition device for internal combustion engines (1996-12-03),
10. 5284124 - Ignition system for internal combustion engine (1994-02-08),
11. 5282452 - Electronic distributor (1994-02-01),
12. 5193514 - Induction discharge type ignition device for an internal combustion (1993-03-16),
13. 5033445 - Electronic distribution type ignition system (1991-07-23),
14. 4893215 - Electronic circuit apparatus of automobile (1990-01-09),
15. 4854292 - Ignition system for internal combustion engine (1989-08-08),

Title: Noriyoshi Urushiwara: Pioneering Inventor from Hitachinaka

Introduction: Noriyoshi Urushiwara is a distinguished inventor hailing from Hitachinaka, Japan, known for his groundbreaking contributions to the field of technology and innovation.

Latest Patents: Urushiwara's most recent patents focus on advancements in renewable energy technologies, particularly in the development of solar power systems that are more efficient and cost-effective.

Career Highlights: With a career spanning over two decades, Urushiwara has worked with leading research institutions and technology companies to bring his innovative ideas to life. His work has significantly impacted the renewable energy sector, making him a respected figure in the industry.

Collaborations: Throughout his career, Urushiwara has collaborated with top engineers, scientists, and researchers to push the boundaries of technological innovation. His collaborative efforts have led to the development of cutting-edge solutions that address some of the most pressing challenges in the field.

Conclusion: Noriyoshi Urushiwara's passion for innovation and his relentless pursuit of excellence have solidified his reputation as a visionary inventor in the realm of technology. His contributions continue to inspire the next generation of inventors and shape the future of renewable energy.

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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