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Yokohama, Japan

Lapis Technology Co., Ltd.

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USPTO Granted Patents = 80

Forward Citations = 13

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55 inventors (with patents filed for the assignee):

Hiroshi Tsuchi (18 out of 130 patents)

Hiroaki Ishii (5 out of 13 patents)

Yukinobu Watanabe (4 out of 9 patents)

4. Hiroyoshi Ichikura (4 out of 20 patents)

5. Kenichi Shigeta (4 out of 10 patents)

6. Yuki Imatoh (3 out of 14 patents)

7. Koji Higuchi (3 out of 46 patents)

8. Tetsuo Oomori (3 out of 8 patents)

9. Kenichi Shiibayashi (2 out of 16 patents)

10. Hayato Koizumi (2 out of 2 patents)

11. Takuya Motohashi (2 out of 2 patents)

12. Tadashi Takenoshita (2 out of 2 patents)

13. Masayuki Otsuka (1 out of 18 patents)

14. Hideki Masai (1 out of 5 patents)

15. Masato Yamazaki (1 out of 10 patents)

Core Competencies:

Display Driver

Digital-to-Analog Converter

Semiconductor Device

Data Driver

Output Buffer Circuit

Video Processing

Wireless Communication

Source Driver

Display Device

Circuit Design

Power Management

Signal Processing

80 patents: Sort by Forward Citations

1. 12525162 - Digital-to-analog conversion circuit, data driver, and display device (2026-01-13),

2. 12513461 - Audio reproduction device, audio reproduction LSI, and audio reproduction method (2025-12-30),

3. 12512153 - Semiconductor device and semiconductor memory device (2025-12-30),

4. 12483245 - Output buffer circuit, charge pump device, display drive device, and display device (2025-11-25),

5. 12445130 - Output buffer circuit and semiconductor device (2025-10-14),

6. 12444382 - Source driver, display controller, and display device (2025-10-14),

7. 12438568 - Wireless communication device (2025-10-07),

8. 12438531 - Delay time control circuit (2025-10-07),

9. 12424137 - Display driver and display apparatus (2025-09-23),

10. 12406638 - Digital-to-analog converter, data driver, and display device (2025-09-02),

11. 12394390 - Source driver having charge share line connecting output lines and display apparatus (2025-08-19),

12. 12393067 - Driver circuit for suppressing variations in slew rate (2025-08-19),

13. 12385969 - Semiconductor device and semiconductor device testing method (2025-08-12),

14. 12361908 - Display apparatus, source driver, and gradation voltage generating circuit (2025-07-15),

15. 12361907 - Digital-to-analog converter, data driver, and display device (2025-07-15),

Company Overview

Lapis Technology Co., Ltd., based in Yokohama, Japan, specializes in advanced display technology solutions. The company focuses on the development and manufacturing of display drivers, digital-to-analog converters, and semiconductor devices, catering to the evolving needs of the electronics industry. Lapis Technology is also engaged in video processing and wireless communication technologies, enhancing the performance and efficiency of various display applications. With a commitment to innovation, the company plays a significant role in shaping the future of visual technology.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 27 2026

80 Patents

#26 in Yokohama

#1,308 in Japan

#9,466 in the World

Yokohama, Japan

Lapis Technology Co., Ltd.

Forward Citations = 13

55 inventors:

Hiroshi Tsuchi (18 out of 130 patents)

Hiroaki Ishii (5 out of 13 patents)

Yukinobu Watanabe (4 out of 9 patents)

4. Hiroyoshi Ichikura (4 out of 20 patents)

5. Kenichi Shigeta (4 out of 10 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Lapis Technology Co., Ltd.. Retrieved from https://idiyas.com/company/lapis-technology-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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