Company Filing History:

18 out of 42,485

Hitachi, Ltd.

patents

7 out of 164,108

International Business Machines Corporation

Hitachi Microcomputer Engineering, Ltd.

patents

where one patent can have more than one assignee

Years Active: 1978-1999

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26 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 5863631 - Perpendicular magnetic recording medium and magnetic recording device (1999-01-26),

2. 5844910 - Flash-erase-type nonvolatile semiconductor storage device (1998-12-01),

3. 5734816 - Nonvolatile memory with flash erase capability (1998-03-31),

4. 5598370 - Nonvolatile memory with cluster-erase flash capability and solid state (1997-01-28),

5. 5546402 - Flash-erase-type nonvolatile semiconductor storage device (1996-08-13),

6. 5509018 - Flash-erase-type nonvolatile semiconductor storage device (1996-04-16),

7. 5457658 - Nonvolatile memory with cluster-erase flash capability and solid state (1995-10-10),

8. 5270987 - Magneto-optical recording and reproducing method, magneto-optical memory (1993-12-14),

9. 5023473 - Drive circuit for Bloch line memory (1991-06-11),

10. 5014239 - Magnetic bubble generator using plural conductors with common current (1991-05-07),

11. 4837741 - Magnetic bubble memory device (1989-06-06),

12. 4788672 - Method and apparatus for controlling renewal of data in optical disc (1988-11-29),

13. 4769783 - Magnetic bubble memory device (1988-09-06),

14. 4755430 - Magnetic bubble memory device (1988-07-05),

15. 4745578 - Magnetic bubble memory device (1988-05-17),

Title: Innovator Spotlight: Takashi Toyooka - Pioneering Inventor from Sayama, JP

Introduction:

Takashi Toyooka is a renowned inventor hailing from Sayama, Japan, known for his exceptional contributions to the field of technology. With an impressive portfolio of 26 patents, Toyooka has been instrumental in shaping the landscape of magnetic recording mediums and semiconductor storage devices.

Latest Patents:

Among his latest patents is the groundbreaking Perpendicular Magnetic Recording Medium and Magnetic Recording Device. This innovation features a perpendicular magnetic film with specific compositions of Cobalt (Co) and Chromium (Cr), optimized for magnetic recording disk drives utilizing magnetoresistive read heads. Additionally, Toyooka's Flash-Erase-Type Nonvolatile Semiconductor Storage Device revolutionizes memory cell arrays, enabling efficient data management and error correction.

Career Highlights:

Throughout his illustrious career, Takashi Toyooka has made significant contributions while working with esteemed companies such as Hitachi, Ltd. and International Business Machines Corporation (IBM). His expertise and innovative spirit have been crucial in advancing the technological frontier in collaboration with industry leaders.

Collaborations:

Toyooka's success is not only attributed to his individual brilliance but also to his collaborations with talented peers. Noteworthy coworkers include Hirokazu Aoki and Ryo Suzuki, who have worked alongside Toyooka in realizing innovative solutions in the realm of technology.

Conclusion:

In conclusion, Takashi Toyooka stands as a beacon of innovation and inventiveness in the realm of technology, with a remarkable track record of patents and advancements. His pioneering work continues to inspire and drive progress in the ever-evolving landscape of inventions and patents, leaving a lasting impact on the industry.

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Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.