Toshio Ishii

This inventor holds 32 USPTO granted patents and 2 published patent applications, plus 1 CIPO patent and 2 EPO patents, primarily in Optical Communication. Top assignees: Fujitsu Optical Components Limited, Nkk Corporation, Hitachi Solutions, Ltd.. Active years: 1986-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Toshio Ishii. Retrieved from https://idiyas.com/inventor/toshio-ishii-dmtcky5b

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

USPTO Granted Patents = 32 (Patent Applications = 2)

% Patents Active = 84.4

CIPO Patents = 1

EPO Patents = 2 (Patent Applications = 2)

Average Co-Inventor Count = 1.9

ph-index = 8

Forward Citations = 363(Granted Patents)

Location History:

Kawaski, JP (1992)
Fukuyama, JP (2000 - 2008)
Kawasaki, JP (1993 - 2015)
Tokyo, JP (1986 - 2017)
Yokohama, JP (1986 - 2024)

Company Filing History:

10 out of 250

Fujitsu Optical Components Limited

Hitachi Solutions, Ltd.

patents

4. 2 out of 16,458

Fuji Photo Film Company, Limited

Japan & Nippon Furnace Kogyo Kaisha, Ltd.

patent

7. 1 out of 1,973

Jfe Steel Corporation

Nippon Kokan Kabushiki Kaisha

where one patent can have more than one assignee

Years Active: 1986-2026

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Areas of Expertise:

Optical Device

Optical Transmitter

Optical Receiver

Optical Modulator

Optical Communication

Waveform Compensation

Communication Module

Digitizer

Heat Exhausting Structure

Hot-Dip Galvanizing

Continuous Casting

Reflective Bar

32 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 12640537 - Optical device and optical transmitter (2026-05-26),

2. 12072533 - Optical transmission apparatus, optical modulator, and activation method (2024-08-27),

3. 11901939 - Optical receiver and optical transceiver module (2024-02-13),

4. 11418180 - Equalizer and communication module using the same (2022-08-16),

5. 11405049 - Optical communication apparatus and correcting method (2022-08-02),

6. 10659154 - Optical module and control method of controlling center wavelength of optical filter (2020-05-19),

7. 10530495 - Optical receiver, optical transceiver using the same, and control method of reception of optical signals (2020-01-07),

8. 10256938 - Optical receiver, optical transceiver, and optical signal reception control method (2019-04-09),

9. 9605331 - Batch annealing furnace for coils (2017-03-28),

10. 9203518 - Optical transmitter and waveform compensation method (2015-12-01),

11. 9014570 - Optical transmitter and method for optical signal waveform compensation (2015-04-21),

12. D716809 - Digitizer for interactive white board (2014-11-04),

13. D712478 - Reflective bar for interactive whiteboard (2014-09-02),

14. D708182 - Digitizer for interactive whiteboard (2014-07-01),

15. D687830 - Reflective pen for interactive white board (2013-08-13),

Title: **Innovative Contributions of Toshio Ishii in Optical Technology**

Introduction

Toshio Ishii, based in Tokyo, Japan, is a prominent inventor known for his significant contributions in optical technology. With an impressive portfolio of 31 patents, Ishii has played a vital role in advancing optical transmission systems and related technologies, showcasing his creativity and technical expertise in the field.

Latest Patents

Among his latest patents, Ishii has developed an optical transmission apparatus that includes an emitter, which emits optical signals in accordance with a bias current, and a Mach-Zehnder optical modulator that optically modulates these signals based on an electrical signal. This innovative optical modulator features a detector that measures the internal temperature and a controller that maintains the temperature at a target level upon power supply activation.

Another notable patent involves an optical receiver and transceiver module. This invention incorporates an optical amplifier designed to amplify received optical signals containing multiple wavelengths. The system also includes a monitor circuit for observing light intensities from the demultiplexed optical signal, a processor, and a specialized memory. These components work together through iterative calculations to ensure accurate gauging of incident light intensities and optimize the amplifier's gains for varying wavelengths, ultimately enhancing performance and efficiency.

Career Highlights

Throughout his career, Toshio Ishii has been associated with reputable organizations such as NKK Corporation and Fujitsu Optical Components Limited. His roles within these companies have allowed him to explore and innovate within the realms of optical technology, contributing to solutions that address complex challenges in transmission and communication systems.

Collaborations

Ishii’s journey has seen him collaborate with notable colleagues, including Shunichi Sugiyama and Munehiro Ishioka. Their combined efforts have driven meaningful advancements in optical technologies, underscoring the importance of teamwork in transformative innovation.

Conclusion

Toshio Ishii stands out as a leading inventor in optical technology, with a remarkable body of work that has advanced the field significantly. His latest innovations highlight his commitment to enhancing optical transmission systems, reflecting his enduring impact on technology and innovation. With each patent, Ishii continues to pave the way for future advancements and inspire the next generation of inventors in the optical domain.

Profile summary based on public USPTO records.