Company Filing History:

13 out of 28,544

Ricoh Company, Ltd.

patents

1 out of 25,530

Sharp Kabushiki Kaisha Corporation

where one patent can have more than one assignee

Years Active: 1986-1999

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14 patents (USPTO):Sort by Forward Citations

Abstract keywords

1. 5912870 - Disk drive unit having improved shutter mechanism (1999-06-15),

2. 5790511 - Dust-proof structure for optical pickup unit (1998-08-04),

3. 5787063 - Disk drive unit having improved shutter mechanism (1998-07-28),

4. 5506828 - Optical disk loading apparatus with disk loading mechanism (1996-04-09),

5. 5351228 - Optical disk drive unit (1994-09-27),

6. 5237551 - Apparatus measuring an output of a disk drive (1993-08-17),

7. 5231623 - Optical disk drive apparatus (1993-07-27),

8. 5119252 - Inhibiting ejection of disc memory for selected time after power off (1992-06-02),

9. 5086422 - Optical disk apparatus (1992-02-04),

10. 5025339 - Disk drive apparatus with oil damper on eject lever (1991-06-18),

11. 4823336 - Optical disk drive (1989-04-18),

12. 4763212 - Floppy disk drive with a linearly operated media clamp (1988-08-09),

13. 4729047 - Disk driving device for a disk cartridge (1988-03-01),

14. 4620249 - Apparatus for driving a floppy disc (1986-10-28),

Title: The Innovative Mind of Tetsuo Kanno

Introduction

Tetsuo Kanno is a notable inventor based in Ebina, Japan, with a remarkable portfolio of 14 patents. His inventive work primarily focuses on advancements in disk drive units and optical pickup units, showcasing a deep understanding of technology and user needs.

Latest Patents

Among Kanno's latest innovations is a disk drive unit featuring an improved shutter mechanism. This invention enhances the functionality of disk drive units by incorporating a body case with an opening for easy cartridge insertion and removal. The shutter mechanism is designed to maintain a closed position to prevent debris entry while allowing for a smooth operation during cartridge loading and ejection via a linked cam system.

Another significant patent is the dust-proof structure for an optical pickup unit. This design features a streamlined shape on the upstream side of air flow, which effectively keeps airborne dust particles away from the objective lens. This innovative air flow management ensures that the optical pickup unit remains clean, improving performance and longevity.

Career Highlights

Kanno has contributed his expertise to prominent companies such as Ricoh Company, Ltd. and Sharp Corporation. His work within these organizations has significantly impacted the design and functionality of optical and disk drive technologies.

Collaborations

During his career, Kanno has collaborated with notable coworkers, including Yoshiaki Aota and Akihiko Okamoto. These partnerships have fostered a creative environment that has allowed for the development of several of his noteworthy inventions.

Conclusion

Tetsuo Kanno's contributions to the fields of disk and optical technology reflect his innovative spirit and dedication to enhancing user experience. His extensive patent portfolio, coupled with his impactful collaborations, underscores his legacy as a leading inventor in modern technology.

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