Location History:
- Hikone-shi, Shiga JP (2004 - 2005)
- Hikone-shi, Shiga, JP (2006)
Company Filing History:
2 out of 166 
1 out of 3 
1 out of 7 
Years Active: 2004-2006
Title: Heisaburo Nakagawa: Innovator in Machining Technology
Introduction
Heisaburo Nakagawa is a notable inventor based in Hikone-shi, Shiga, Japan. He has made significant contributions to the field of machining technology, particularly in the development of methods and apparatuses that enhance machining accuracy and tool life. With a total of 3 patents to his name, Nakagawa's work is recognized for its innovative approach to cutting force detection and control.
Latest Patents
One of Nakagawa's latest patents is a cutting force detection method and machining control method and apparatus based on detected cutting force. This invention focuses on end-mill machining control, where cutting forces tangential and normal to tool motion are detected, allowing for machining to be controlled based on these values. The primary component of the cutting force, along with motion axis components, is determined from the current values of spindle and motion axis motors. This method enhances the accuracy of cutting force determination, leading to improved machining precision and extended tool life.
Another significant patent involves an NC program generating method, NC apparatus, computer memory product, and computer program product. This invention replaces the required machining shape of a workpiece with a predetermined canned machining cycle based on specific machining conditions. By repeatedly calculating the estimated cutting force exerted on the end mill during the machining cycle, Nakagawa's method optimizes the tool path and feed rate, achieving high machining efficiency and accuracy.
Career Highlights
Throughout his career, Heisaburo Nakagawa has worked with prominent companies, including Mori Seiki Co., Ltd. His experience in these organizations has allowed him to refine his skills and contribute to advancements in machining technology.
Collaborations
Nakagawa has collaborated with notable individuals in the field, including Yoshiaki Kakino and Hirotoshi Ohtsuka. These collaborations have further enriched his work and contributed to the development of innovative machining solutions.
Conclusion
Heisaburo Nakagawa's contributions to machining technology through his patents and collaborations highlight his role as a significant inventor in the industry. His innovative methods for cutting force detection and machining control continue to influence the field, ensuring improved accuracy and efficiency in machining processes.