Forward Citations = 149

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21 inventors (with patents filed for the assignee):

Takumi Ohata (1 out of 6 patents)

Kuniaki Sato (1 out of 38 patents)

Hideko Fukushima (1 out of 16 patents)

4. Masaaki Tokunaga (1 out of 20 patents)

5. Shigeho Tanigawa (1 out of 25 patents)

6. Katsunori Iwasaki (1 out of 20 patents)

7. Yasuto Nozawa (1 out of 10 patents)

8. Masahiko Oshima (1 out of 1 patent)

9. Toshiyuki Hatori (1 out of 1 patent)

10. Michio Itoh (1 out of 4 patents)

11. Hideshige Matsuo (1 out of 7 patents)

12. Isamu Yamamoto (1 out of 3 patents)

13. Fumio Obata (1 out of 7 patents)

14. Minoru Endoh (1 out of 7 patents)

15. Saburo Okada (1 out of 3 patents)

7 patents: Sort by Forward Citations

1. 5505033 - Column base structure and connection arrangement (1996-04-09),

2. 5122703 - Integrally molded armature for swing-type actuator (1992-06-16),

3. 5100612 - Spheroidal graphite cast iron (1992-03-31),

4. 5096863 - Diffusion-bonded assembly of AlN ceramic bodies and heat dissipation (1992-03-17),

5. 5096763 - Magnet article for attracting foreign matters in the stomach (1992-03-17),

6. 5096509 - Anisotropic magnetic powder and magnet thereof and method of producing (1992-03-17),

7. 4958422 - Wear-resistant compound roll (1990-09-25),

Company Overview

Hitachi Metals, Ltd. is a Japan-based company engaged in the manufacture and sale of a wide variety of metals and metal-related products. The company offers materials for electronics, automotive, construction, energy, and other industries. With a focus on innovation and quality, Hitachi Metals strives to provide solutions to meet the needs of its customers worldwide.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

7 Patents

#158 in

#5,456 in Japan

JP

501 Hitachi Metals, Ltd.

Forward Citations = 149

21 inventors:

Takumi Ohata (1 out of 6 patents)

Kuniaki Sato (1 out of 38 patents)

Hideko Fukushima (1 out of 16 patents)

4. Masaaki Tokunaga (1 out of 20 patents)

5. Shigeho Tanigawa (1 out of 25 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: 501 Hitachi Metals, Ltd.. Retrieved from https://idiyas.com/company/501-hitachi-metals

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]