Location History:
- Akashi, JP (1998)
- Hiroshima, JP (1999 - 2006)
Company Filing History:
3 out of 1,100 
2 out of 627 Years Active: 1998-2006
Title: Seigo Arai: Innovator in Construction Machinery
Introduction
Seigo Arai is a notable inventor based in Hiroshima, Japan. He has made significant contributions to the field of construction machinery, holding a total of 5 patents. His innovative designs focus on improving the efficiency and functionality of construction equipment.
Latest Patents
One of Arai's latest patents is a construction machine that features an engine, hydraulic device, and heat exchanger for cooling. This design includes a maintenance passage that allows easy access to the engine and hydraulic device, enhancing maintenance efficiency. The exhaust air from cooling fans is cleverly routed through this passage, improving the cooling efficiency of the heat exchanger.
Another significant invention is a pump controller for construction machines. This controller enables operators to set the maximum speed of specific actuators without altering the negative control. It comprises multiple control valves, a variable displacement hydraulic pump, and pressure sensors that work together to ensure smooth operation and optimal performance.
Career Highlights
Throughout his career, Seigo Arai has worked with prominent companies in the construction machinery sector. Notable employers include Kobe Steel, Ltd. and Kobelco Construction Machinery Co., Ltd. His experience in these organizations has contributed to his expertise in developing innovative machinery solutions.
Collaborations
Arai has collaborated with talented individuals in the industry, including Takashi Tsukiana and Koichi Yamashita. These partnerships have fostered a creative environment that has led to the development of groundbreaking technologies in construction machinery.
Conclusion
Seigo Arai's contributions to the field of construction machinery are noteworthy. His innovative patents and collaborative efforts have significantly advanced the efficiency and functionality of construction equipment. Arai continues to be a driving force in the industry, inspiring future innovations.