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For the Inventor, By the Inventor

Tokyo, Japan

Hideaki Okayama

USPTO Granted Patents = 62 

Average Co-Inventor Count = 1.3

ph-index = 11

Forward Citations = 383(Granted Patents)

Forward Citations (Not Self Cited) = 373(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Minato-ku, JP (2001 - 2010)
  • Tokyo, JP (1989 - 2019)

Company Filing History:

goldMedal62 out of 4,979 
 
Oki Electric Industry Co., Ltd.
 patents
silverMedal4 out of 62 
 
Photonics Electronics Technology Research Association
 patents
where one patent can have more than one assignee

Years Active: 1989-2019

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Areas of Expertise:
Wavelength Filter
Optical Waveguide
Optical Multiplexer
Optical Demultiplexer
Optical Resonator
Polarization Independent Device
Optical Switch
Data Communication Network
Optical Deflector
Wavelength Router
Optical Buffer
Lightwave System
62 patents (USPTO):Explore Patents
1. 10228512 - Wavelength filter (2019-03-12),
2. 10088628 - Optical waveguide element and receiving circuit (2018-10-02),
3. 9823418 - Waveguide-type optical diffraction grating and optical wavelength filter (2017-11-21),
4. 9804328 - Optical multiplexing and de-multiplexing element and arrayed-waveguide grating-type optical wavelength filter (2017-10-31),
5. 9780903 - Optical wavelength demultiplexer having optical interference filters connected in cascade (2017-10-03),
6. 9274278 - Optical waveguide element (2016-03-01),
7. 9151901 - Wavelength-selective path-switching element (2015-10-06),
8. 9151898 - Optical device (2015-10-06),
9. 8693820 - Flat optical waveguide with connections to channel and input optical waveguides (2014-04-08),
10. 8682121 - Optical wavelength filter with wavelength characteristic variation minimized (2014-03-25),
11. 8630517 - Optical multiplexer/demultiplexer (2014-01-14),
12. 8532452 - Optical device and Mach-Zehnder interferometer (2013-09-10),
13. 8401350 - Optical resonator, and fluid optical sensor employing an optical resonator (2013-03-19),
14. 8218932 - Polarization independent optical device (2012-07-10),
15. 8208772 - Polarization independent directional coupler and related optical devices (2012-06-26),

Title: The Innovative Journey of Hideaki Okayama: Pioneering Patents and Collaborative Success in Tokyo

Introduction:

Hideaki Okayama, a visionary inventor based in Tokyo, JP, has left a lasting impact on the field of optics with his prolific advancements and groundbreaking inventions. With a total of 62 patents to his name, Okayama's work continues to shape the landscape of optical technologies worldwide.

Latest Patents:

Among his latest patents is the cutting-edge "Wavelength Filter," a revolutionary device that includes intricate components for precise wavelength manipulation. Additionally, the "Optical Waveguide Element and Receiving Circuit" showcases Okayama's expertise in developing complex optical systems with exceptional functionality and performance.

Career Highlights:

Okayama's illustrious career has seen him contribute significantly to renowned organizations such as Oki Electric Industry Co., Ltd. and the Photonics Electronics Technology Research Association. His innovative spirit and dedication to pushing the boundaries of optical engineering have garnered him widespread recognition in the industry.

Collaborations:

Throughout his career, Okayama has collaborated closely with esteemed colleagues such as Issei Asabayashi and Toshimasa Ishida. Together, they have spearheaded projects that have led to groundbreaking discoveries and technological advancements in the field of optics.

Conclusion:

Hideaki Okayama's remarkable journey as an inventor exemplifies the power of innovation and collaboration in driving progress and shaping the future of technology. His trailblazing patents and unwavering commitment to excellence continue to inspire generations of inventors and researchers in the ever-evolving realm of optical engineering.

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