Atsushi Sasayama

This inventor holds 9 USPTO granted patents. Top assignees: Hitachi, Ltd., Hitachi Tobu Semiconductor, Hitachi Eastern Semiconductor. Active years: 1978-1995.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Atsushi Sasayama. Retrieved from https://idiyas.com/inventor/atsushi-sasayama

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 = 100.0

Average Co-Inventor Count = 4.6

ph-index = 8

Forward Citations = 229(Granted Patents)

Location History:

Takasaki, JP (1978)
Komoro, JP (1988 - 1995)

Company Filing History:

Hitachi Tobu Semiconductor

patents

1 out of 1

Hitachi Eastern Semiconductor

patent

where one patent can have more than one assignee

Years Active: 1978-1995

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9 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 5408559 - Optoelectronic device (1995-04-18),

2. 5195155 - Optical coupling apparatus and manufacturing method of the same, and (1993-03-16),

3. 4997243 - Method of mounting a light emitting chip and an optical fiber on a (1991-03-05),

4. 4920262 - Photoelectric device with leads (1990-04-24),

5. 4803361 - Photoelectric device with optical fiber and laser emitting chip (1989-02-07),

6. 4793688 - Photo electro device, method for manufacture of same, and lens support (1988-12-27),

7. 4768070 - Optoelectronics device (1988-08-30),

8. 4756592 - Luminescent package device for coupling an optical fiber with a (1988-07-12),

9. 4107727 - Resin sealed semiconductor device (1978-08-15),

Title: The Innovations of Atsushi Sasayama

Introduction

Atsushi Sasayama is a prominent inventor based in Komoro, Japan. He has made significant contributions to the field of optoelectronics, holding a total of nine patents. His work focuses on enhancing optical devices and improving their efficiency.

Latest Patents

Sasayama's latest patents include an optoelectronic device that features a wave-separating filter positioned at an angle deviated from 45 degrees relative to the optical axis of transmission light. This innovative design allows for improved functionality in transmitting and receiving optoelectronic devices. Another notable patent is an optical coupling apparatus that incorporates a light-emitting diode, a lens, an optical isolator, and an optical fiber aligned on a common optical axis. This invention enhances optical coupling efficiency through precise adjustments of the optical elements.

Career Highlights

Throughout his career, Atsushi Sasayama has worked with notable companies such as Hitachi, Ltd. and Hitachi Tobu Semiconductor. His experience in these organizations has contributed to his expertise in the field of optoelectronics and optical devices.

Collaborations

Sasayama has collaborated with esteemed colleagues, including Tugio Nemoto and Kunio Aiki. Their joint efforts have further advanced the innovations in optoelectronic technologies.

Conclusion

Atsushi Sasayama's contributions to optoelectronics through his patents and collaborations highlight his role as a significant inventor in the field. His work continues to influence advancements in optical 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]