Company Filing History:

29 out of 42,485

Hitachi, Ltd.

patents

4 out of 149

Hitachi Microcomputer Engineering, Ltd.

patents

1 out of 46

Hitachi Video and Information System, Inc.

patents

where one patent can have more than one assignee

Years Active: 1987-2001

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29 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 6266200 - Magnetic disk storage apparatus (2001-07-24),

2. 5999353 - Magnetic disk storage apparatus with phase sync circuit having (1999-12-07),

3. 5745066 - AD converter and magnetic recording/regenerating apparatus using thereof (1998-04-28),

4. 5673058 - One-chip semiconductor integrated circuit device capable of outputting (1997-09-30),

5. 5633766 - Magnetic disk storage apparatus with phase sync circuit having (1997-05-27),

6. 5557274 - Ad converter and magnetic recording/regenerating apparatus using the same (1996-09-17),

7. 5515068 - One-chip semiconductor integrated circuit device capable of outputting (1996-05-07),

8. 5512847 - BiCMOS tri-state output driver (1996-04-30),

9. 5475715 - Sync data introduction method and system (1995-12-12),

10. 5463504 - Magnetic disk system and waveform equalizer therefor (1995-10-31),

11. 5404250 - Magnetic disk storage apparatus with phase sync circuit having (1995-04-04),

12. 5398047 - Semiconductor integrated circuit device including high-speed operating (1995-03-14),

13. 5377136 - Semiconductor integrated circuit device with built-in memory circuit (1994-12-27),

14. 5265045 - Semiconductor integrated circuit device with built-in memory circuit (1993-11-23),

15. 5245224 - Level conversion circuitry for a semiconductor integrated circuit (1993-09-14),

Title: **Akira Uragami: Innovator in Magnetic Disk Storage Technologies**

Introduction

Akira Uragami, based in Takasaki, Japan, is an accomplished inventor with an impressive portfolio of 29 patents. His innovations primarily focus on magnetic disk storage technology, profoundly influencing data storage solutions. Akira's work has helped enhance the efficiency and performance of magnetic disk systems, making them integral to modern computing.

Latest Patents

Among his notable inventions, Akira's latest patents include a **magnetic disk storage apparatus** that features a magnetic disk-type storage medium and a head for reading data recorded on it. This invention incorporates a processor and a phase synchronizing circuit with controllable response characteristics, facilitating improved data handling. The processor efficiently generates access positions on the magnetic disk, allowing for precise control of the response characteristics based on previously stored information. Additionally, another patent highlights an advanced **magnetic disk storage apparatus with a phase sync circuit** that incorporates a phase locked loop, designed to stabilize operations despite varying data transfer speeds. These innovations reflect Akira's commitment to advancing technology in data storage systems.

Career Highlights

Over his career, Akira Uragami has significantly contributed to the field of data storage at prominent companies such as Hitachi, Ltd. and Hitachi Microcomputer Engineering, Ltd. His experience and insights have been essential in developing cutting-edge technologies that meet the demands of the evolving digital landscape.

Collaborations

Throughout his career, Akira has worked with talented colleagues, including Ryutaro Horita and Toshiaki Matsubara. These collaborations have fostered an environment of innovation, enabling the team to push the boundaries of magnetic disk technology further.

Conclusion

Akira Uragami stands out as a notable inventor in the realm of magnetic disk storage technology. With 29 patents to his name, his work continues to impact the efficiency and capacity of data storage solutions significantly. As technology advances, Akira’s contributions will undoubtedly remain influential in shaping the future of computing.

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