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Hoxan Corporation

USPTO Granted Patents = 31

Forward Citations = 233

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28 inventors (with patents filed for the assignee):

Yasuo Kuraoka (14 out of 16 patents)

Nobuo Sakao (9 out of 9 patents)

Ichiro Hide (6 out of 6 patents)

4. Takashi Yokoyama (4 out of 4 patents)

5. Yasuhiro Maeda (3 out of 3 patents)

6. Yuji Tahara (3 out of 3 patents)

7. Junichi Umetsu (3 out of 3 patents)

8. Akio Kawamura (2 out of 4 patents)

9. Yoshimi Nakanishi (2 out of 2 patents)

10. Yoichi Kasai, Deceased (2 out of 2 patents)

11. Akira Kakita (2 out of 2 patents)

12. Toshihiko Tsuburaya (2 out of 2 patents)

13. Keiji Sawaya (2 out of 2 patents)

14. Koji Fujioka (2 out of 2 patents)

15. Shinichi Yagihashi (2 out of 2 patents)

Core Competencies:

Vitamin D2

Vitamin D3

Polycrystalline Silicon

Cryogenic Testing

SQUID Devices

Polyacetylene Film

Frozen Liver Fabrication

Gas Liquefaction

X-Ray Inspection

Melting Point Measurement

Automatic Power Supply

Organ Preservation

31 patents: Sort by Forward Citations

1. 5446174 - 1-.beta.7,8-trihydroxy vitamin D.sub.2, 1.beta.7,8-trihydroxy vitamin D.sub (1995-08-29),

2. 5367259 - Active shielding device based on SQUID and feedback therefrom for the (1994-11-22),

3. 5283345 - 1.beta.,7,8-trihydroxy vitamin D.sub.2, 1.smallcircle.,7,8-trihydroxy (1994-02-01),

4. 5225579 - Method of manufacturing vitamin D2, Vitamin D3, activated type vitamin (1993-07-06),

5. 5167758 - Method of forming polycrystalline silicon layer on semiconductor wafer (1992-12-01),

6. 5133095 - Method of and system for supplying electric power to automatic water (1992-07-28),

7. 4987921 - Method of fabricating frozen fine liver piece for artificial liver, (1991-01-29),

8. 4984430 - Method of fabricating frozen fine liver pieces for artificial liver, (1991-01-15),

9. 4883452 - Method of fabricating frozen fine liver pieces for artificial liver, (1989-11-28),

10. 4858261 - Movable bed vehicle (1989-08-22),

11. 4820145 - Polycrystalline silicon wafer tray (1989-04-11),

12. 4745163 - Catalytic film polymerization of acetylene (1988-05-17),

13. 4675137 - Method for producing polyacetylene film (1987-06-23),

14. 4663123 - Apparatus for producing polyacetylene film (1987-05-05),

15. 4561486 - Method for fabricating polycrystalline silicon wafer (1985-12-31),

Company Overview

Hoxan Corporation, based in Sapporo, Japan, specializes in advanced technology solutions, focusing on the development and manufacturing of innovative electronic components and systems. The company is dedicated to enhancing performance across various sectors, including telecommunications and industrial automation. With a commitment to research and development, Hoxan aims to drive technological advancements that meet the evolving needs of its clients while maintaining a strong emphasis on quality and reliability in its products.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

31 Patents

#4 in Sapporo

#2,271 in Japan

#21,260 in the World

Hoxan Corporation

Forward Citations = 233

28 inventors:

Yasuo Kuraoka (14 out of 16 patents)

Nobuo Sakao (9 out of 9 patents)

Ichiro Hide (6 out of 6 patents)

4. Takashi Yokoyama (4 out of 4 patents)

5. Yasuhiro Maeda (3 out of 3 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Hoxan Corporation. Retrieved from https://idiyas.com/company/hoxan

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]

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