Forward Citations = 14

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5 inventors (with patents filed for the assignee):

Naoki Onishi (3 out of 23 patents)

Tsukasa Kobata (2 out of 27 patents)

Hiroki Kimura (1 out of 9 patents)

4. Yu Iwai (1 out of 5 patents)

5. Yasuo Kitayama (1 out of 8 patents)

5 patents: Sort by Forward Citations

1. 8156621 - Methods of producing piezoelectric vibrating devices (2012-04-17),

2. 7664535 - Control method for high-frequency radio equipment and high-frequency radio system (2010-02-16),

3. 7656208 - PLL oscillation circuit (2010-02-02),

4. 7508281 - Frequency synthesizer (2009-03-24),

5. 7489949 - Control method for high-frequency radio equipment and high-frequency radio system (2009-02-10),

Nihon Dempa Kogyo, Ltd. (NDK) is a leading manufacturer of high-precision crystal products including crystal oscillators, crystal filters, and crystal resonators. Founded in 1948, NDK has a strong reputation for quality and reliability in the electronics industry. With a focus on innovation and customer satisfaction, NDK continues to provide cutting-edge solutions for a wide range of industries.

This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Dec 9 2025

5 Patents

#2,449 in Tokyo

#6,487 in Japan

Tokyo, Japan

Nihon Dempa Kogyo, Ltd.