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Yozan Corporation

USPTO Granted Patents = 159

Forward Citations = 1,668

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43 inventors (with patents filed for the assignee):

Makoto Yamamoto (119 out of 155 patents)

Sunao Takatori (111 out of 126 patents)

Guoliang Shou (101 out of 105 patents)

4. Changming Zhou (42 out of 47 patents)

5. Weikang Yang (28 out of 30 patents)

6. Kazunori Motohashi (19 out of 20 patents)

7. Xuping Zhou (15 out of 20 patents)

8. Ryohei Kumagai (12 out of 51 patents)

9. Koji Matsumoto (10 out of 119 patents)

10. Mamoru Sawahashi (8 out of 303 patents)

11. Kunihiko Suzuki (8 out of 10 patents)

12. Fumiyuki Adachi (8 out of 50 patents)

13. Takashi Tomatsu (7 out of 7 patents)

14. Kenzo Urabe (5 out of 19 patents)

15. Wiwat Wongwarawipat (5 out of 5 patents)

Core Competencies:

Spread Spectrum Communication

Matched Filter Circuit

Analog to Digital Converter

Radio Communication Device

Complex Multiplication Circuit

Multi-User Demodulator

Phase Correction Method

Signal Reception Apparatus

Time Spread Root Nyquist Filter

Capacitance-Forming Method

Receiver for CDMA Communication

Communication System Design

159 patents: Sort by Forward Citations

1. 6778654 - System for transfer control of telephone line (2004-08-17),

2. 6763231 - Radio communication device, parent communication device, parent-child communication device and radio communication system (2004-07-13),

3. 6625205 - Matched filter circuit (2003-09-23),

4. 6563373 - Filter circuit utilizing a plurality of sampling and holding circuits (2003-05-13),

5. 6512785 - Matched filter bank (2003-01-28),

6. 6421027 - Millimeter-wave signal transmission system communicatable within buildings (2002-07-16),

7. 6389438 - Matched filter and signal reception apparatus (2002-05-14),

8. 6388583 - Method and circuit for codes generation (2002-05-14),

9. 6370130 - Spread spectrum communication system (2002-04-09),

10. 6340942 - Analog to digital converter (2002-01-22),

11. 6300823 - Filter circuit (2001-10-09),

12. 6281831 - Analog to digital converter (2001-08-28),

13. 6263012 - Receiver apparatus for CDMA communication system (2001-07-17),

14. 6252899 - Complex despreading system (2001-06-26),

15. 6169771 - Matched filter for spread spectrum communication systems and hybrid analog-digital transversal filter (2001-01-02),

Yozan Corporation is a leading provider of innovative technology solutions. With a strong focus on research and development, Yozan consistently delivers cutting-edge products and services across various industries. Our team of skilled professionals is dedicated to delivering exceptional customer experiences and driving industry growth through our advanced technological solutions.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 16 2025

159 Patents

#362 in Tokyo

#802 in Japan

#5,039 in the World

Yozan Corporation

Forward Citations = 1,668

43 inventors:

Makoto Yamamoto (119 out of 155 patents)

Sunao Takatori (111 out of 126 patents)

Guoliang Shou (101 out of 105 patents)

4. Changming Zhou (42 out of 47 patents)

5. Weikang Yang (28 out of 30 patents)

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