Nobunari Tsukamoto

This inventor holds 16 USPTO granted patents and 1 published patent application, plus 5 CIPO patents and 4 EPO patents, primarily in Optical Devices. Top assignee: Ricoh Company, Ltd.. Active years: 2010-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Nobunari Tsukamoto. Retrieved from https://idiyas.com/inventor/nobunari-tsukamoto

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Calculating rank

USPTO Granted Patents = 16 (Patent Applications = 1)

% Patents Active = 37.5

CIPO Patents = 5

EPO Patents = 4 (Patent Applications = 7)

Average Co-Inventor Count = 2.5

ph-index = 2

Forward Citations = 16(Granted Patents)

Location History:

Ohta-ku, JP (2010)
Kanagawa, JP (2011 - 2012)
Kawanishi, JP (2012)
Osaka, JP (2016 - 2024)

Company Filing History:

16 out of 28,957

Ricoh Company, Ltd.

patents

Years Active: 2010-2026

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Areas of Expertise:

Optical Device

Retinal Projection Display

Light Deflector

Distance Measurement

Image Projection

LiDAR Device

Wireless Communication

Amplifier Circuit

Antenna Module

Data Processing

Pixel Clock Generator

FM-AM Demodulator

16 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 12674974 - Optical device, retinal projection display, and head-mounted display (2026-07-07),

2. 12196947 - Operating device, light deflector, light deflecting device, distance measurement apparatus, image projection apparatus, and mobile object (2025-01-14),

3. 12091309 - Movable device, distance measurement device, image projection apparatus, vehicle, and mount (2024-09-17),

4. 12044839 - Light deflector, deflecting device, distance-measuring apparatus, image projection device, and vehicle (2024-07-23),

5. 11808855 - Optical device, range sensor using optical device, and mobile object (2023-11-07),

6. 11624903 - Light deflector, LiDAR device, and image forming apparatus (2023-04-11),

7. 11579289 - Distance measuring apparatus and mobile body including the same (2023-02-14),

8. 10298419 - Low voltage differential signaling driver (2019-05-21),

9. 9684808 - Wireless communication apparatus and mobile device (2017-06-20),

10. 9473199 - Amplifier circuit, antenna module, and radio communication device (2016-10-18),

11. 9407312 - Amplifier circuit, antenna module and wireless communication apparatus (2016-08-02),

12. 8243865 - Data processing apparatus (2012-08-14),

13. 8213892 - FM-AM demodulator and control method therefor (2012-07-03),

14. 8194780 - Differential signal output device (2012-06-05),

15. 8023605 - Oversampling circuit and oversampling method (2011-09-20),

Title: Nobunari Tsukamoto: Innovator in Optical Devices

Introduction

Nobunari Tsukamoto is a prominent inventor based in Osaka, Japan. He has made significant contributions to the field of optical devices, holding a total of 15 patents. His work focuses on innovative technologies that enhance the functionality and efficiency of various devices.

Latest Patents

Tsukamoto's latest patents include an operating device, a light deflector, a light deflecting device, a distance measurement apparatus, an image projection apparatus, and a mobile object. The operating device features an oscillator that is oscillable around an oscillation axis, along with a support and a movable portion. This movable portion includes a first connecting portion connected to the oscillator and a second connecting portion connected to the support. The design incorporates a beam that intersects the oscillation axis, enhancing its operational capabilities.

Additionally, his movable device consists of a movable portion with a reflecting surface, supported by a pair of drive beams that allow for rotation around a predetermined axis. This innovative design facilitates the passage of light reflected by the surface, showcasing Tsukamoto's expertise in optical engineering.

Career Highlights

Nobunari Tsukamoto is currently employed at Ricoh Company, Ltd., where he continues to develop cutting-edge technologies. His work has significantly impacted the field of optical devices, making him a key figure in the industry.

Collaborations

Throughout his career, Tsukamoto has collaborated with notable colleagues, including Hidetoshi Ema and Masayuki Fujishima. These collaborations have further enriched his work and contributed to the advancement of optical technologies.

Conclusion

Nobunari Tsukamoto is a distinguished inventor whose contributions to optical devices have garnered him recognition in the field. His innovative patents and ongoing work at Ricoh Company, Ltd. continue to shape the future of technology.

Profile summary based on public USPTO records.