logo

For the Inventor, By the Inventor

Naka, Japan

Japan Nuclear Cycle Development Institute

Calculating rank
USPTO Granted Patents = 55

% Expired Patents = 58.2



Forward Citations = 219

Loading Chart...
Loading Chart...

117 inventors (with patents filed for the assignee):

goldMedal Kuniaki Ara (8 out of 12 patents)

silverMedal Hiroaki Ohira (6 out of 6 patents)

bronzeMedal Tadahiro Washiya (6 out of 6 patents)

4.  Shigeharu Ukai (5 out of 5 patents)

5.  Masaki Ozawa (4 out of 7 patents)

6.  Satoshi Ohtsuka (4 out of 4 patents)

7.  Takeji Kaito (4 out of 4 patents)

8.  Nobuki Oka (3 out of 6 patents)

9.  Mikio Toda (3 out of 3 patents)

10.  Toshiro Nishi (3 out of 8 patents)

11.  Hiroyuki Tsutaya (3 out of 15 patents)

12.  Kazuya Kurome (3 out of 5 patents)

13.  Naoki Yoshioka (3 out of 3 patents)

14.  Hitoshi Hayashida (3 out of 4 patents)

15.  Masayuki Fujiwara (3 out of 5 patents)


Core Competencies:
Nanoparticle-dispersed Fluids
Thermal Load Reduction
Electrolytic Hydrogen Production
Actinide Element Recovery
Pyrochemical Reprocessing
Radiation Detection
High-Temperature Strength
Solid-Gas Separation
Continuous Sintering
Seismic Isolation
Heat Exchanger Technologies
Radioactive Waste Management

55 patents:

1. 8236251 - Nanoparticle-dispersed high-performance liquid fluid, production method and apparatus for the fluid, and leak detection method for the fluid (2012-08-07),
2. 8036335 - Thermal load reducing system for nuclear reactor vessel (2011-10-11),
3. 8004175 - Light-emitting material, light-emitting body, and light-emitting method (2011-08-23),
4. 7910627 - Nanoparticle-dispersed high-performance liquid fluid, production method and apparatus for the fluid, and leak detection method for the fluid (2011-03-22),
5. 7635421 - Electrolytic apparatus for use in oxide electrowinning method (2009-12-22),
6. 7578922 - Method for producing hydrogen by chemical process using heat with electricity (2009-08-25),
7. 7550072 - Method of producing electrolytic hydrogen using rare element-deposit electrode (2009-06-23),
8. 7491345 - Extraction mixture for recovery of actinide elements from acidic solutions (2009-02-17),
9. 7375336 - ZnS(Ag) scintillation detector (2008-05-20),
10. 7366644 - Method of judging practical conditions for use of an ordered alloy under irradiation environments (2008-04-29),
11. 7361235 - Method for producing dispersed oxide reinforced ferritic steel having coarse grain structure and being excellent in high temperature creep strength (2008-04-22),
12. 7326368 - Fluid in liquid state containing dispersed nano-particles of metal or the like (2008-02-05),
13. 7323153 - Reprocessing method by fluoride volatility process using fractional distillation (2008-01-29),
14. 7323032 - Pyrochemical reprocessing method for spent nuclear fuel (2008-01-29),
15. 7279139 - Agitation type powder dissolving apparatus for reprocessing spent nuclear fuel (2007-10-09),
Company Overview
The Japan Nuclear Cycle Development Institute, located in Naka, Japan, specializes in advanced nuclear fuel reprocessing technologies. Its research focuses on innovative methods such as nanoparticle-dispersed fluids and pyrochemical reprocessing, aimed at enhancing actinide element recovery and improving thermal load reduction. The institute also explores electrolytic hydrogen production and solid-gas separation techniques, contributing to the development of efficient radiation detection systems and materials with high-temperature strength, thereby advancing the nuclear energy sector.
Profile summary synthesized from public USPTO records and patent filings.

logo

Company Badge

USPTO Data Jan 1 1976 - Oct 27 2026

55 Patents

#1 in Naka

#1,623 in Japan

#12,945 in the World

Naka, JP
Naka, Japan

Japan Nuclear Cycle Development Institute

Forward Citations = 219

117 inventors:

goldMedal Kuniaki Ara (8 out of 12 patents)

silverMedal Hiroaki Ohira (6 out of 6 patents)

bronzeMedal Tadahiro Washiya (6 out of 6 patents)

4.  Shigeharu Ukai (5 out of 5 patents)

5.  Masaki Ozawa (4 out of 7 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Japan Nuclear Cycle Development Institute. Retrieved from https://idiyas.com/company/japan-nuclear-cycle-development-institute

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

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]
Loading…