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For the Inventor, By the Inventor

Kanagawa, Japan

Akio Yamakawa

USPTO Granted Patents = 19

Average Co-Inventor Count = 2.3

ph-index = 7

Forward Citations = 102(Granted Patents)


Location History:

  • Atsugi, JP (1983)
  • Kanagawa, JP (1988 - 2004)
  • Tokyo, JP (2000 - 2013)

Company Filing History:

goldMedal19 out of 58,129 
 
Sony Corporation
 patents

Years Active: 1983-2013

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19 patents (USPTO):
1. 8432591 - Light irradiation device for recording information in a hologram recording medium (2013-04-30),
2. 8121010 - Hologram device, tilt detection method, and tilt correction method (2012-02-21),
3. 7995445 - Optical pickup apparatus, reproduction apparatus, and reproduction method (2011-08-09),
4. RE38538 - Apparatus and method for recording and reproducing information from a plurality of recording medium having different thicknesses and recording densities (2004-06-22),
5. 6570828 - Optical pickup device having a movable-side member driven with a predetermined inclination (2003-05-27),
6. 6366543 - Optical pickup for discriminating between and reading different types of optical discs (2002-04-02),
7. 6222803 - Optical pickup for discriminating between and reading different types of optical discs (2001-04-24),
8. 6104688 - Objective lens, reproducing apparatus and reproducing method (2000-08-15),
9. 5963535 - Disk reproducing apparatus (1999-10-05),
10. 5875164 - Apparatus and method for recording and reproducing information from a (1999-02-23),
11. 5751679 - Hologram formed on an objective lens for one defracting light beams (1998-05-12),
12. 5742575 - Method and device for identifying disc (1998-04-21),
13. 5737294 - Objective lens with two numerical apertures for reading/writing two (1998-04-07),
14. 5682372 - Method and apparatus for playing back multilayer disk (1997-10-28),
15. 5506830 - Disk player (1996-04-09),

Title: The Innovative Contributions of Akio Yamakawa

Introduction

Akio Yamakawa, a notable inventor based in Kanagawa, Japan, has made significant contributions to the field of holography through his innovative patents. With a total of 19 patents to his name, Yamakawa has developed cutting-edge technologies that promise to revolutionize information recording methods.

Latest Patents

Yamakawa's latest patents include groundbreaking devices that enhance holographic recording processes. One notable invention is the "Light Irradiation Device for Recording Information in a Hologram Recording Medium." This device employs a focus servo control unit that ensures light is precisely directed via an objective lens, optimizing the recording process on the hologram medium. Additionally, the "Hologram Device, Tilt Detection Method, and Tilt Correction Method" represents another significant advancement. This patent details a hologram device featuring a light source and spatial modulation unit that collaborates to correct tilt errors, ensuring accuracy in light application to the recording surface.

Career Highlights

Akio Yamakawa currently works at Sony Corporation, where he has directed his expertise towards developing advanced imaging and holography solutions. His innovative aptitude has led to numerous patents that enhance product functionality, reflecting the commitment of Sony to technological advancement.

Collaborations

During his career, Yamakawa has collaborated with talented professionals like Masamichi Utsumi and Kamon Uemura. These collaborations have contributed to the successful development and implementation of various holographic technologies, propelling forward the capabilities of their organization.

Conclusion

Akio Yamakawa's inventions and patents are a testament to his creativity and technical proficiency within the field of holography. His work at Sony Corporation and collaborations with esteemed colleagues are helping shape the future of information recording technologies, marking him as a key figure in the realm of innovations.

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