Masashi Oya

Title: Masashi Oya: Inventor of Rotary Grinding Methods

Introduction

Masashi Oya is an inventor associated with Hiroshima, Japan. His patent work includes methods and apparatus for grinding rotary bodies and rolls, with a focus on using controlled contact and relative motion to grind their surfaces. Oya is associated with Mitsubishi Heavy Industries, Ltd. His listed portfolio includes 3 patents.

Latest Patents

Oya’s listed patents describe two approaches to grinding rotary bodies.

In one method, a grindstone is positioned so that its rotational axis does not intersect the axis of the rotary body being ground. The grindstone’s axis is also inclined relative to a plane perpendicular to the body’s axis. As the body rotates, the grindstone is pressed against its outer surface, and the relative slip at the contact point performs the grinding.

Another method addresses on-line grinding of a rolling-mill roll. A freely rotating grinding body, such as a grindstone, is pressed against the roll at a predetermined angle to its axis. The roll’s rotation creates a difference in circumferential velocity between the roll and grinding body, producing the relative slip that grinds the roll’s surface.

Career Highlights

Oya’s documented patent contributions center on rotary grinding techniques. The described methods use the orientation of the grinding body and the relative motion between it and the workpiece to achieve surface grinding, including during rolling-mill operation.

Collaborations

Oya’s listed coworkers include Kazuo Ideue and Junichi Ibushi. His work is associated with Mitsubishi Heavy Industries, Ltd.

Conclusion

Masashi Oya’s patent record highlights practical grinding methods that use carefully arranged axes, contact angles, and relative motion to process rotary bodies and rolling-mill rolls.