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For the Inventor, By the Inventor

Kitahiroshima, Japan

Hokusan Co. Ltd

Calculating rank
USPTO Granted Patents = 8

% Expired Patents = 12.5



Trademarks = 1

Forward Citations = 0

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23 inventors (with patents filed for the assignee):

goldMedal Akira Ito (5 out of 26 patents)

silverMedal Takeshi Matsumura (4 out of 10 patents)

bronzeMedal Noriko Tabayashi (4 out of 4 patents)

4.  Toru Gotanda (4 out of 5 patents)

5.  Uiko Kagaya (3 out of 3 patents)

6.  Noriko Itchoda (2 out of 4 patents)

7.  Kuniaki Yoshioka (2 out of 2 patents)

8.  Ko Sato (2 out of 2 patents)

9.  Kazuaki Takehara (2 out of 2 patents)

10.  Emiko Isogai (2 out of 2 patents)

11.  Nobutoshi Maehara (2 out of 2 patents)

12.  Daisuke Awakura (2 out of 2 patents)

13.  Kiyoshi Kimura (2 out of 2 patents)

14.  Kazuyoshi Masuda (2 out of 2 patents)

15.  Eiji Takita (1 out of 5 patents)


8 patents:

1. 11427620 - Malaria transmission blocking vaccine (2022-08-30),
2. 10799448 - Therapeutic effect of oral interferon a administration on chronic intractable external otitis (2020-10-13),
3. 9937271 - [object Object] (2018-04-10),
4. 9629900 - Oral composition containing interferon-α (2017-04-25),
5. 9181561 - Adiponectin-containing eating behavior control agent for oral administration (2015-11-10),
6. 8992905 - Oral composition containing interferon-α (2015-03-31),
7. 8710042 - Method for preventing wheat from mycotoxin contamination (2014-04-29),
8. 8197832 - Methods and compositions for inhibiting mycotoxin contamination in cereals (2012-06-12),
Company Overview
Hokusan Co. Ltd is a leading manufacturer of industrial machinery and equipment based in Japan. With over 50 years of experience, we specialize in providing high-quality products for various industries such as automotive, electronics, and aerospace. Our innovative solutions and commitment to excellence have earned us a strong reputation in the market. Visit our website to learn more about our products and services.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 27 2026

8 Patents

#1 in Kitahiroshima

#5,050 in Japan

Kitahiroshima, JP
Kitahiroshima, Japan

Hokusan Co. Ltd

Forward Citations = 0

23 inventors:

goldMedal Akira Ito (5 out of 26 patents)

silverMedal Takeshi Matsumura (4 out of 10 patents)

bronzeMedal Noriko Tabayashi (4 out of 4 patents)

4.  Toru Gotanda (4 out of 5 patents)

5.  Uiko Kagaya (3 out of 3 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Hokusan Co. Ltd. Retrieved from https://idiyas.com/company/hokusan-company

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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