Masanori Arai

This inventor holds 20 USPTO granted patents and 2 published patent applications, plus 1 CIPO patent and 6 EPO patents, primarily in Optical Measurement Technology. Top assignees: Mitutoyo Corporation, Nikon Corporation, Fujitsu Corporation. Active years: 1989-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masanori Arai. Retrieved from https://idiyas.com/inventor/masanori-arai

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

USPTO Granted Patents = 20 (Patent Applications = 2)

% Patents Active = 100.0

CIPO Patents = 1

EPO Patents = 6 (Patent Applications = 7)

Average Co-Inventor Count = 3.4

ph-index = 6

Forward Citations = 91(Granted Patents)

Location History:

Kawasaki, JP (1989 - 2019)
Kanagawa, JP (1994 - 2021)

Company Filing History:

where one patent can have more than one assignee

Years Active: 1989-2026

Loading Chart...

Areas of Expertise:

Optical Device

Laser Radar

Image Measurement

Surface Roughness

Non-Contact Measurement

Variable Focal Length Lens

Measuring Apparatus

Calibration

Vibration-Type Sensor

Three-Dimensional Measurement

Collision Prevention

Displacement Detection

20 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 12729955 - Optical device and inspection method (2026-09-08),

2. 12644988 - Laser radar (2026-06-02),

3. 11193757 - Image pick-up device, image measurement apparatus, non-contact displacement-detecting device and non-contact profile-measuring device (2021-12-07),

4. D870795 - Variable focal length lens (2019-12-24),

5. D869542 - Variable focal length lens (2019-12-10),

6. 10295337 - Surface texture measuring apparatus (2019-05-21),

7. 9341460 - Double cone stylus, touch probe, and method of calibrating double cone stylus (2016-05-17),

8. 9250053 - Surface roughness measuring unit and coordinate measuring apparatus (2016-02-02),

9. 8994957 - Detection method and detection apparatus (2015-03-31),

10. 8650767 - Coordinates measuring head unit and coordinates measuring machine (2014-02-18),

11. 8547559 - Detection method and detection apparatus (2013-10-01),

12. 7490411 - Screw measuring method, screw measuring probe, and screw measuring apparatus using the screw measuring probe (2009-02-17),

13. 7099008 - Alignment adjuster of probe, measuring instrument and alignment adjusting method of probe (2006-08-29),

14. 6812850 - Measuring apparatus (2004-11-02),

15. 6516669 - Vibration-type contact detection sensor (2003-02-11),

Title: Masanori Arai: Innovator in Non-Contact Measurement Technologies

Introduction

Masanori Arai is a prominent inventor based in Kawasaki, Japan, known for his contributions to the field of imaging and measurement technologies. With a portfolio of 18 patents, Arai has made significant advancements that enhance precision in various applications.

Latest Patents

Among his latest innovations are the image pick-up device, image measurement apparatus, non-contact displacement-detecting device, and non-contact profile-measuring device. The image measurement apparatus integrates an image sensor functioning as an image pick-up device with a variable focal length lens, also known as a liquid lens unit. This device is designed to enhance measurement accuracies by allowing precise control over the focal length and processing detected images efficiently. Additionally, the non-contact displacement-detecting device functions similarly, utilizing the same components to measure displacement without physical contact, showcasing Arai's focus on innovative measurement techniques.

Career Highlights

Masanori Arai has held significant positions at prestigious companies such as Mitutoyo Corporation and Nikon Corporation. His work in these organizations has propelled advancements in imaging technology, significantly impacting various industrial applications.

Collaborations

Throughout his career, Arai has collaborated with renowned professionals such as Sadayuki Matsumiya and Shuichi Kamiyama. These partnerships have played a pivotal role in driving forward innovative solutions in the fields of measurement and imaging.

Conclusion

Masanori Arai’s inventive spirit and dedication to advancing technology position him as a key figure in the field of non-contact measurement devices. His notable patents continue to influence industry standards and practices, ensuring greater accuracy and efficiency across various applications.

Profile summary based on public USPTO records.