Company Filing History:

22 out of 39,228

Fujitsu Corporation

patents

1 out of 125

Toshiba Storage Device Corporation

patents

Years Active: 1997-2010

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23 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 7719788 - Servo information correcting method (2010-05-18),

2. 7561371 - Magnetic disk device, servo-information writing device, magnetic disk, and magnetic disk device manufacturing method (2009-07-14),

3. 7522364 - Control circuit for information storage device (2009-04-21),

4. 7492543 - Control device, control method, and storage apparatus for controlling read head and write head clearance (2009-02-17),

5. 7420765 - Seek control apparatus, seek control method and storage apparatus (2008-09-02),

6. 7289287 - Apparatus for recording or/and reproducing information and method for reducing power consumption thereof (2007-10-30),

7. 7196865 - Recording apparatus having discoid record mediums (2007-03-27),

8. 7136245 - Disk device (2006-11-14),

9. 7050250 - Storage apparatus and storage medium (2006-05-23),

10. 7002769 - Head control method and recording apparatus (2006-02-21),

11. 6690538 - Disk drive device and access sequence therefor (2004-02-10),

12. 6295175 - Apparatus for recognizing spin valve head failure due to pin layer magnetic field offset (2001-09-25),

13. 6219722 - Head IC and recording apparatus (2001-04-17),

14. 6175459 - Magnetic disk drive with a disk medium defect detector and read channel IC used in the drive (2001-01-16),

15. 6130793 - Thermal asperity detection method, thermal asperity compensation method, (2000-10-10),

Title: The Innovative Contributions of Isamu Tomita in the Field of Magnetic Disk Technology

Introduction: Isamu Tomita, an accomplished inventor based in Kawasaki, Japan, has significantly impacted the technology surrounding magnetic disk devices. With a remarkable portfolio of 23 patents, Tomita has developed pioneering techniques that enhance the performance and reliability of data storage systems.

Latest Patents: Among his latest innovations, Tomita has introduced a servo information correcting method. This invention involves operations to store a post code from each servo frame on a target track of a disk recording medium into memory when specific conditions are met. This method allows for a more precise correction of the demodulation position, utilizing stored post codes to enhance data retrieval accuracy. Additionally, he has filed patents for a magnetic disk device that organizes servo information radially across multiple areas, differentiating between low and high frequency writes across the inner and outer circumferences. This innovative design enables the magnetic disk device to manage concentric tracks efficiently and optimize reading processes.

Career Highlights: Tomita's career is marked by his tenure at leading firms in technology. Notable companies include Fujitsu Corporation and Toshiba Storage Device Corporation. His work has been essential in the evolution of magnetic disk technology, reflecting his commitment to advancing the field.

Collaborations: Throughout his career, Tomita has collaborated with some prominent figures in technology, including Yoshiyuki Kagami and Kazunori Mori. These partnerships have further enhanced the scope and impact of his inventions, guiding innovative developments within the industry.

Conclusion: Isamu Tomita’s contributions to magnetic disk technology exemplify the power of innovation in the digital age. Through 23 patents and collaboration with other talented professionals, his work continues to shape the future of data storage solutions, affirming his status as a notable inventor in the technology landscape.

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