For the Inventor, By the Inventor

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Hitachi Ferrite, Ltd.

USPTO Granted Patents = 3

Forward Citations = 16

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9 inventors (with patents filed for the assignee):

Norikazu Koyuhara (1 out of 9 patents)

Shigeru Takeda (1 out of 13 patents)

Hitoshi Ueda (1 out of 2 patents)

4. Kohei Ito (1 out of 11 patents)

5. Sadami Kubota (1 out of 5 patents)

6. Yasuaki Kinoshita (1 out of 9 patents)

7. Norihiro Naito (1 out of 1 patent)

8. Akio Uchikawa (1 out of 1 patent)

9. Emi Nakagawa (1 out of 1 patent)

3 patents: Sort by Forward Citations

1. 5618464 - Ni ferrite and core made of Ni ferrite for power supplies (1997-04-08),

2. 5017894 - Lumped constant non-reciprocal circuit element (1991-05-21),

3. 4992760 - Magnetostatic wave device and chip therefor (1991-02-12),

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USPTO Data Jan 1 1976 - Sep 22 2026

3 Patents

#3,540 in Tokyo

#8,914 in Japan

Hitachi Ferrite, Ltd.

Forward Citations = 16

9 inventors:

Norikazu Koyuhara (1 out of 9 patents)

Shigeru Takeda (1 out of 13 patents)

Hitoshi Ueda (1 out of 2 patents)

4. Kohei Ito (1 out of 11 patents)

5. Sadami Kubota (1 out of 5 patents)

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