Location History:
- Hiratsuka, JA (1977)
- Hiratsuka, JP (1979)
- Komatsu, JP (1983)
Company Filing History:
Years Active: 1977-1983
Title: Katsu Hirosawa: Innovator in Hydraulic Machinery
Introduction
Katsu Hirosawa is a notable inventor based in Hiratsuka, Japan. He has made significant contributions to the field of hydraulic machinery, holding a total of 4 patents. His innovative designs have enhanced the functionality and efficiency of various construction equipment.
Latest Patents
One of Hirosawa's latest patents is a hydraulic excavator. This excavator features first and second booms that are pivoted end to end, along with an arm that is pivotally connected to the swinging end of the second boom. A bucket is mounted at the leading end of the arm, and a boom operating linkage mechanism, which includes a lever and hydraulic cylinders, is mounted on a full-revolving base. This design allows the first boom to swing with respect to the base, while the arm can rotate with respect to the second boom, enabling both backhoe and front loading operations.
Another significant patent is a paving material extrusion molding apparatus. This apparatus is designed for continuously laying or molding paving material. The paving material is supplied into hoppers and conveyed into a molding element by multiple screw conveyors. The material is compacted by screw thrusts that equal the frictional force produced by the dead weight of the apparatus. A reaction force created by this compaction allows the entire apparatus to float off, while another reaction force from the continuous feeding of the paving material moves the apparatus along a predetermined path.
Career Highlights
Katsu Hirosawa works at Komatsu Ltd., a leading company in the manufacturing of construction and mining equipment. His work has significantly impacted the efficiency and effectiveness of hydraulic machinery used in various industries.
Collaborations
Hirosawa has collaborated with notable coworkers, including Koji Ogaki and Masashi Kaminishi. Their combined expertise has contributed to the development of innovative solutions in hydraulic machinery.
Conclusion
Katsu Hirosawa is a distinguished inventor whose work in hydraulic machinery has led to the development of advanced equipment that enhances construction processes. His patents reflect a commitment to innovation and efficiency in the industry.