Tokyo, Japan

Tsutomu Maruyama

This inventor holds 6 USPTO granted patents and 7 published patent applications. Top assignees: Nec Corporation, Sanyo Denki Co., Ltd., Sony Group Corporation. Active years: 1990-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Tsutomu Maruyama. Retrieved from https://idiyas.com/inventor/tsutomu-maruyama-x1mm9sc4

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

Calculating rank
USPTO Granted Patents = 6 

% Patents Active = 50.0

Average Co-Inventor Count = 3.2

ph-index = 1

Forward Citations = 11(Granted Patents)


Company Filing History:


Years Active: 1990-2026

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6 patents (USPTO):Explore Patents

Title: Tsutomu Maruyama: Innovator in Optical Measurement Technology

Introduction

Tsutomu Maruyama is a notable inventor based in Tokyo, Japan. He has made significant contributions to the field of optical measurement technology, holding a total of 6 patents. His work focuses on developing advanced devices that enhance the accuracy and efficiency of optical measurements.

Latest Patents

One of Maruyama's latest patents is an optical measurement device and optical measurement system. This device includes a spectral optical system that disperses fluorescence emitted from a biological specimen. An image sensor receives the dispersed fluorescence and generates fluorescence information. The image sensor is divided into multiple regions that capture different wavelength components of the fluorescence, allowing for detailed analysis of each component.

Another significant patent is a guidance control device and guidance control method. This device is designed to control a projection device for projecting images. It generates a subject-identifying image to be projected in a specific area where a subject person conducts a predetermined operation. Additionally, it creates a guide image to assist the subject person in performing the operation effectively.

Career Highlights

Throughout his career, Tsutomu Maruyama has worked with prominent companies such as Sanyo Denki Co., Ltd. and Sony Group Corporation. His experience in these organizations has contributed to his expertise in optical technologies and innovation.

Collaborations

Maruyama has collaborated with notable colleagues, including Koichi Kobayashi and Masaaki Hara. These partnerships have further enriched his work and led to advancements in the technologies he has developed.

Conclusion

Tsutomu Maruyama is a distinguished inventor whose work in optical measurement technology has made a significant impact. His innovative patents and collaborations highlight his commitment to advancing the field.

Profile summary based on public USPTO records.
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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