Company Filing History:

13 out of 42,485

Hitachi, Ltd.

patents

2 out of 2,636

Hitachi Global Storage Technologies Netherlands B.v.

patents

2 out of 227

Hitachi Global Storage Technologies Japan, Ltd.

patents

4. 1 out of 203

Hitachi Media Electronics Co., Ltd.

patents

Years Active: 1985-2009

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18 patents (USPTO):Sort by Forward Citations

Abstract keywords

1. 7569967 - Compact disk device and disk drive (2009-08-04),

2. 7333283 - Disk drive device with temperature and humidity control (2008-02-19),

3. 7035044 - Magnetic disk device having a low-profile motor without deterioration in the strength of the enclosure (2006-04-25),

4. 7009815 - Disk drive with spring provided in groove of voice coil holder to electrically connect voice coil with flexible printed circuit (2006-03-07),

5. 6950276 - Disk drive motor and disk drive storage device incorporating same (2005-09-27),

6. 6943984 - Magnetic disc apparatus having stator structure with reduced distortion (2005-09-13),

7. 6774490 - Electronic device (2004-08-10),

8. 6635971 - Electronic device and optical transmission module (2003-10-21),

9. 6589802 - Packaging structure and method of packaging electronic parts (2003-07-08),

10. 6555052 - Electron device and semiconductor device (2003-04-29),

11. 6034578 - Surface acoustic wave device with closely spaced discharge electrodes (2000-03-07),

12. 5175711 - Surface acoustic wave apparatus and method of productivity and (1992-12-29),

13. 4918349 - Surface acoustic wave device having apodized transducer provided with (1990-04-17),

14. 4818961 - Surface acoustic wave filter with capacitive phase shifter (1989-04-04),

15. 4775846 - Unidirectional surface acoustic wave device (1988-10-04),

Title: Yuji Fujita: Innovator in Disk Drive Technology

Introduction

Yuji Fujita is a prominent inventor based in Yokohama, Japan. He has made significant contributions to the field of disk drive technology, holding a total of 18 patents. His innovative designs focus on enhancing the efficiency and reliability of disk devices.

Latest Patents

Fujita's latest patents include a compact disk device and a disk drive that boasts a small size, minimal thickness, high efficiency, reduced vibration, and low noise levels. One embodiment of this disk device features a disk for storing information and a disk drive that includes a rotor portion with an annular permanent magnet. The stator portion is designed with a wiring board and a coil that surrounds the stator core, ensuring optimal performance. Another notable patent is a disk drive device equipped with temperature and humidity control. This invention enhances reliability by mitigating the effects of temperature changes in various environments. It includes a humidity control element, a temperature sensor, and a control circuit that manages temperature fluctuations effectively.

Career Highlights

Throughout his career, Yuji Fujita has worked with notable companies such as Hitachi, Ltd. and Hitachi Global Storage Technologies Netherlands B.V. His experience in these organizations has allowed him to refine his expertise in disk drive technology and contribute to groundbreaking innovations.

Collaborations

Fujita has collaborated with esteemed colleagues, including Jun Yamada and Takashi Shiba. Their combined efforts have led to advancements in the field of disk drive technology.

Conclusion

Yuji Fujita's contributions to disk drive technology have significantly impacted the industry. His innovative patents and collaborations highlight his dedication to enhancing the efficiency and reliability of disk devices.

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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.