Kazuhiro Sunamura

Title: Kazuhiro Sunamura: Innovator in Hydraulic Technology

Introduction

Kazuhiro Sunamura is a notable inventor based in Tsuchiura, Japan, recognized for his contributions to hydraulic machinery. With a total of four patents to his name, Sunamura has developed innovative solutions that enhance the efficiency and security of hydraulic systems.

Latest Patents

One of Sunamura's latest patents is an interference prevention system for two-piece boom type hydraulic excavators. This system operates by reducing the pilot pressure when the arm end exceeds a boundary line and enters a slowdown area, thereby slowing down the arm end speed. Additionally, when the arm end enters a restoration area, the system calculates a restoration gain based on the intrusion amount and adjusts the boom accordingly to ensure smooth operation and improved working efficiency. Another significant patent is a burglarproof device for hydraulic machines. This device enhances security by requiring a specific sequence of key inputs to unlock the system. If the correct sequence is not entered, the device prevents the hydraulic machine from operating, thereby safeguarding it against unauthorized use.

Career Highlights

Throughout his career, Kazuhiro Sunamura has worked with prominent companies such as Hitachi Construction Machinery Co., Ltd. and Hitachi Construction Co., Ltd. His experience in these organizations has contributed to his expertise in hydraulic technology and innovation.

Collaborations

Sunamura has collaborated with notable colleagues, including Toichi Hirata and Osamu Tomikawa. Their combined efforts have likely fostered advancements in hydraulic machinery and technology.

Conclusion

Kazuhiro Sunamura's innovative patents and career in hydraulic technology highlight his significant contributions to the field. His work continues to influence the efficiency and security of hydraulic systems in various applications.