IDiyas

For the Inventor, By the Inventor

Ibaraki, Japan

Nobuyoshi Tsuboi

USPTO Granted Patents = 21

Average Co-Inventor Count = 7.2

ph-index = 14

Forward Citations = 450(Granted Patents)


Location History:

  • Tokai, JP (1988 - 1991)
  • Naka, JP (1990 - 1993)
  • Toukai, JP (1988 - 1995)
  • Ibaraki, JP (1985 - 1996)
  • Tokai-muran, JP (1996)

Company Filing History:

goldMedal21 out of 42,485 
 
Hitachi, Ltd.
 patents
silverMedal1 out of 152 
 
Japan Servo Co.,ltd.
 patents
where one patent can have more than one assignee

Years Active: 1985-1996

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21 patents (USPTO):
1. 5583840 - ROM type optical recording medium with a high reflectivity and an (1996-12-10),
2. 5484686 - Optical recording media and information recording and reproducing units (1996-01-16),
3. 5475656 - Optical disk memory and information processing apparatus (1995-12-12),
4. 5432644 - Disk drive unit having motor components in a compact arrangement (1995-07-11),
5. 5371730 - Optical memory and information processing apparatus (1994-12-06),
6. 5317556 - Information processing apparatus and optical head incorporated therein (1994-05-31),
7. 5311494 - Optical disk apparatus and optical head (1994-05-10),
8. 5274612 - Information processor and disk memory used in the same (1993-12-28),
9. 5177717 - Optical memory medium and its information recording and erasing method (1993-01-05),
10. 5110792 - Method and apparatus of optical modulation using superconductive oxide (1992-05-05),
11. 5101096 - Optical recording sheet and method and apparatus for reproducing the same (1992-03-31),
12. 5055731 - High-speed two-dimensional electrostatic actuator (1991-10-08),
13. 4978187 - Optical element, optical disc and rotary encoder with the optical element (1990-12-18),
14. 4937808 - Intergrated optical head with flexible substrate portion (1990-06-26),
15. 4862440 - Optical head with optical beam control using acoustic wave device (1989-08-29),

Title: Nobuyoshi Tsuboi: Innovator in Optical Recording Technology

Introduction

Nobuyoshi Tsuboi, an inventive mind hailing from Ibaraki, Japan, has made significant contributions to the field of optical recording technology. With an impressive portfolio of 21 patents, Tsuboi has focused on developing advanced optical recording media that enhance performance and usability.

Latest Patents

Among Tsuboi's latest inventions are groundbreaking patents that include a ROM type optical recording medium characterized by high reflectivity. Another notable patent describes an optical information handling device designed to improve the interchangeability between different types of optical disks by lowering their reflectivity to 60% or less. Tsuboi has also innovated an optical recording medium utilizing an amorphous-crystalline phase-change. This medium allows for enhanced recording and erasing capabilities by ensuring that the reflectivity in its amorphous state surpasses that of its crystalline counterpart.

Career Highlights

Throughout his career, Nobuyoshi Tsuboi has lent his expertise to notable companies, including Hitachi, Ltd. and Japan Servo Co., Ltd. His work in these organizations has facilitated the development of cutting-edge technologies in optical media, pushing the envelope of what is possible in data storage and retrieval.

Collaborations

During his innovative journey, Tsuboi has collaborated with distinguished professionals like Yoshio Sato and Hiroyuki Minemura. These partnerships have fostered a creative environment that has yielded numerous advancements in the field of optical technology.

Conclusion

Nobuyoshi Tsuboi's commitment to innovation in optical recording technology has propelled him to become a prominent figure in the industry. His numerous patents and collaborative efforts continue to inspire new developments, reflecting the ever-evolving landscape of data storage solutions.

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