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Shigeharu Sumi

USPTO Granted Patents = 16 (Patent Applications = 2)

Average Co-Inventor Count = 1.4

ph-index = 4

Forward Citations = 78(Granted Patents)

Location History:

Shigaken, JP (2003)
Kyoto, JP (1996 - 2022)

Company Filing History:

where one patent can have more than one assignee

Years Active: 1996-2025

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16 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 12354790 - Winding machine and method of manufacturing coil (2025-07-08),

2. 12348095 - Coil with contour shape, stator, and motor having same (2025-07-01),

3. 11482913 - Coil manufacturing method, coil manufacturing device, coil, and motor (2022-10-25),

4. 11478840 - Manufacturing method of wire rod, manufacturing apparatus of wire rod, wire rod, and motor (2022-10-25),

5. 11316414 - Method of manufacturing coil and method of manufacturing motor (2022-04-26),

6. 11245294 - Stator and motor (2022-02-08),

7. 9899884 - Motor armature and motor (2018-02-20),

8. 8867166 - Spindle motor and disk drive apparatus (2014-10-21),

9. 8277126 - Fluid dynamic bearing device (2012-10-02),

10. 7635936 - Fluid dynamic pressure bearing and spindle motor (2009-12-22),

11. 7511918 - Spindle motor and recording disk driving apparatus having the spindle motor (2009-03-31),

12. 7343682 - Technique for filling bearing clearance of fluid-dynamic-pressure bearing unit with oil (2008-03-18),

13. 7265467 - Fluid dynamic pressure bearing and spindle motor (2007-09-04),

14. 7128468 - Hydrodynamic bearing, method of manufacturing the same, method of manufacturing shaft member for hydrodynamic bearing, spindle motor, and recording disk driving apparatus (2006-10-31),

15. 6671125 - Fluid seal and bearing with same (2003-12-30),

Title: Shigeharu Sumi: Innovator in Winding Technology

Introduction

Shigeharu Sumi is a prominent inventor based in Kyoto, Japan. He has made significant contributions to the field of winding technology, holding a total of 16 patents. His innovative designs have advanced the manufacturing processes in various industries.

Latest Patents

Among his latest patents, Sumi has developed a winding machine and a method of manufacturing coils. This winding machine features a winding core around which a winding is wound, along with a first and second winding jig positioned axially. The design includes first and second grippers located radially around the winding core, each equipped with a pair of rollers to grip the winding. Additionally, he has patented a coil with a contour shape, stator, and motor that incorporates a first winding body and a second winding body, both aligned and wound in multiple layers.

Career Highlights

Sumi has worked with notable companies such as Nidec Corporation and NTN Corporation. His experience in these organizations has allowed him to refine his skills and contribute to cutting-edge technologies in the winding sector.

Collaborations

Throughout his career, Sumi has collaborated with talented individuals, including Takeshi Ohiro and Yoshito Oku. These partnerships have fostered innovation and creativity in his projects.

Conclusion

Shigeharu Sumi's contributions to winding technology and his impressive portfolio of patents highlight his role as a leading inventor in the field. His work continues to influence advancements in manufacturing processes.

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