Company Filing History:
Years Active: 1996-1997
Title: The Innovations of Shunichi Ogawa: Mastering MAG Arc Welding
Introduction: Shunichi Ogawa, an accomplished inventor based in Takatsuki, Japan, has contributed significantly to the field of welding technology with a total of three patents to his name. His innovations primarily focus on the development of MAG arc welding methods and apparatus that enhance the welding process.
Latest Patents: Among his notable inventions, Shunichi Ogawa has developed a MAG arc welding apparatus that is capable of achieving welding beads in both a regular ripple pattern and a suitable sectional form. This invention involves a welding power source that generates a first welding current (I1) and a second welding current (I2), which is greater than the first. By switching between these currents, the wire melting speed can be adjusted, allowing for improved weld quality. The apparatus produces an initial arc length of more than 2 mm and a second arc length that exceeds the first, operating at a switching frequency of 0.5 to 25 Hz. Crucially, the ratio of the second current to the first is maintained between 1.03 and 1.20. This inventive method also facilitates lap welding and butt welding, accommodating large gaps by increasing the wire feeding rate by 5 to 20%. The resultant welds not only meet functional requirements but also possess a visually appealing finish.
Career Highlights: Shunichi Ogawa has dedicated his career to advancing welding technology, primarily while working at Daihen Corporation. His innovative techniques have significantly improved the efficiency and quality of welding, showcasing his commitment to continuous improvement in engineering.
Collaborations: Throughout his career, Shunichi has collaborated with esteemed colleagues such as Tomoyuki Ueyama and Shoji Harada. These partnerships have contributed to the successful development and implementation of groundbreaking welding methodologies in the industry.
Conclusion: Shunichi Ogawa's contributions to MAG arc welding technology highlight his innovative spirit and technical expertise. With three significant patents, he continues to influence the welding landscape, demonstrating how dedicated inventors can transform industries through their inventions.