Yoichiro Maruyama

This inventor holds 9 USPTO granted patents. Top assignees: Japan Atomic Energy Institute, Mitsubishi Chemical Industries Limited. Active years: 1984-2006.

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

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

USPTO Granted Patents = 9

% Patents Active = 88.9

Average Co-Inventor Count = 4.1

ph-index = 4

Forward Citations = 35(Granted Patents)

Location History:

Tokai, JP (1994)
Ibaraki-ken, JP (1997 - 2002)
Kyoto, JP (2003)
Ibaraki, JP (1984 - 2006)

Company Filing History:

9 out of 322

Japan Atomic Energy Institute

patents

2 out of 614

Mitsubishi Chemical Industries Limited

patents

where one patent can have more than one assignee

Years Active: 1984-2006

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9 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 7117101 - Remote particle counter for remote measurement of the number and size distribution of suspended fine particles in the atmosphere (2006-10-03),

2. 6633594 - Method for changing a wavelength of a laser light (2003-10-14),

3. 6370166 - Method of enabling laser light to propagate through a medium over long distance by means of controlling its wavefront (2002-04-09),

4. 5701320 - Apparatus and method of stabilizing oscillation frequency for single (1997-12-23),

5. 5287379 - Method of producing a small beam expansion of laser light (1994-02-15),

6. 4689128 - Method of separating isotopes (1987-08-25),

7. 4646309 - Dye laser (1987-02-24),

8. 4584072 - Process for separating an isotope from a mixture of different isotopes (1986-04-22),

9. 4453252 - Dye laser (1984-06-05),

Title: Yoichiro Maruyama: Innovator in Laser Technology

Introduction

Yoichiro Maruyama is a prominent inventor based in Ibaraki, Japan. He has made significant contributions to the field of laser technology, holding a total of nine patents. His work focuses on innovative methods for measuring and manipulating light, particularly in atmospheric studies.

Latest Patents

One of Maruyama's latest patents is a remote particle counter designed for the remote measurement of the number and size distribution of suspended fine particles in the atmosphere. This device utilizes a pulsed laser generator, laser light emitting optics, scattered light collecting optics, and a high-sensitivity two-dimensional photo detector. The system allows for the detection of fine particles forming aerosols in the atmosphere from a distance, providing valuable data on air quality. Another notable patent is a method for changing the wavelength of laser light. This method enhances the efficiency of wavelength conversion by allowing incident laser light to pass through nonlinear optical crystals multiple times, utilizing a combination of returning mirrors, polarizers, and nonlinear optical crystals.

Career Highlights

Throughout his career, Maruyama has worked with esteemed organizations such as the Japan Atomic Energy Research Institute and Mitsubishi Chemical Industries Limited. His experience in these institutions has contributed to his expertise in laser technology and atmospheric measurement.

Collaborations

Maruyama has collaborated with notable colleagues, including Takashi Arisawa and Masaaki Kato. These partnerships have fostered innovation and advancement in their respective fields.

Conclusion

Yoichiro Maruyama's contributions to laser technology and atmospheric measurement are noteworthy. His innovative patents and collaborations reflect his commitment to advancing scientific understanding and technology.

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]