Michio Shiroyama

Title: Michio Shiroyama: Inventor of an Improved Brazing Method

Introduction

Michio Shiroyama is an inventor associated with Oyama, Japan, and Showa Aluminum Corporation. His patent work addresses a practical challenge in manufacturing: producing strong, reliable brazed joints while preventing defects caused by trapped gas or flux residue. Shiroyama is credited with 1 patent.

Latest Patents

Shiroyama’s listed patent, “Method of Brazing a Joint Portion of an Intake Manifold with Preplaced [Brazing Filler Metal],” describes a method for joining two metal pieces. One piece has a tubular joint portion, which is inserted into a bore in the second piece.

The method forms multiple axial grooves on the joint portion’s outer surface. The grooves are 0.3 to 1.5 millimeters deep and spaced 5 to 30 millimeters apart around the circumference. Each groove extends beyond the bore when the pieces are assembled, allowing gas and flux residue to escape during brazing. This helps prevent voids and other defects in the joint’s fillet. The grooves fill with brazing metal, supporting bond strength and helping prevent leakage.

Career Highlights

Shiroyama’s patent reflects an engineering focus on improving the quality and reliability of brazed metal assemblies. By providing an escape path for gas and flux residue, the method addresses a specific source of defects without compromising the finished joint’s strength.

Collaborations

Shiroyama is associated with Showa Aluminum Corporation. His listed coworkers include Takeshi Otsubo and Seiji Tazaki.

Conclusion

Michio Shiroyama’s patented brazing method offers a practical way to reduce joint defects while maintaining strength and resistance to leakage.