Jan Opschoor

This inventor holds 4 USPTO granted patents. Top assignees: U.S. Philips Corporation, Hitachi, Ltd.. Active years: 1989-1992.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Jan Opschoor. Retrieved from https://idiyas.com/inventor/jan-opschoor

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

Calculating rank

USPTO Granted Patents = 4

% Patents Active = 100.0

Average Co-Inventor Count = 1.9

ph-index = 3

Forward Citations = 46(Granted Patents)

Company Filing History:

4 out of 14,087

U.S. Philips Corporation

where one patent can have more than one assignee

Years Active: 1989-1992

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4 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 5113405 - Semiconductor diode laser having a stepped effective refractive index (1992-05-12),

2. 4954971 - Bidimensional laser array with two groups of active regions (1990-09-04),

3. 4822151 - Optical device with phase-locked diodelaser array (1989-04-18),

4. 4819243 - Semiconductor laser with active layer having a radiation emitting active (1989-04-04),

Title: Jan Opschoor: Innovator in Semiconductor Diode Lasers

Introduction

Jan Opschoor is a notable inventor based in Eindhoven, Netherlands. He has made significant contributions to the field of semiconductor diode lasers, holding a total of 4 patents. His work has advanced the technology used in optical recording systems, making him a key figure in this area of innovation.

Latest Patents

Opschoor's latest patents include a semiconductor diode laser featuring a stepped effective refractive index. This innovative design addresses the limitations of existing lasers by reducing mirror degradation, thereby enhancing the power and longevity of the laser. Another notable patent is for a bidimensional laser array that organizes active regions in two equidistant planes, improving the efficiency and performance of the laser systems.

Career Highlights

Throughout his career, Jan Opschoor has worked with prominent companies such as U.S. Philips Corporation and Hitachi, Ltd. His experience in these organizations has allowed him to develop and refine his expertise in semiconductor technology.

Collaborations

Opschoor has collaborated with esteemed colleagues, including Carolus J Van Der Poel and Kimio Tatsuno. These partnerships have contributed to the advancement of his research and innovations in the field.

Conclusion

Jan Opschoor's contributions to semiconductor diode lasers have had a lasting impact on optical recording technology. His innovative patents and collaborations highlight his role as a leading inventor in this specialized 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]