Company Filing History:
Years Active: 1986-1997
Title: Yutaka Kashima: Innovator in Tunnel Boring Technology
Introduction
Yutaka Kashima is a prominent inventor based in Tokyo, Japan, known for his significant contributions to tunnel boring technology. With a total of four patents to his name, Kashima has developed innovative solutions that enhance the efficiency and effectiveness of underground excavation processes.
Latest Patents
Kashima's latest patents include the Shield Tunnel Boring Machine and the Underground Excavator. The Shield Tunnel Boring Machine features a parallel link excavator equipped with excess excavating cutters that are divided into multiple steps. These cutters are coupled to separate jacks, allowing for independent control and precise adjustments during tunnel boring operations. This innovation enables quick corrections to any undesired changes in direction, improving the overall efficiency of the tunneling process.
The Underground Excavator is designed with a chamber in the forward section of the excavator body to receive excavated materials such as soil, sand, gravel, and clay. It includes a rotary cutter that penetrates through the chamber, allowing for axial rotation and simultaneous rocking. This design effectively manages the excavation of materials, reducing the need for additional labor and facilities to remove larger gravel, thereby significantly lowering excavation costs.
Career Highlights
Throughout his career, Yutaka Kashima has worked with notable companies, including Daiho Construction Co., Ltd. and Daiho Corporation. His experience in these organizations has contributed to his expertise in the field of excavation and tunneling technology.
Collaborations
Kashima has collaborated with talented individuals such as Norio Kondo and Hakumi Hagimoto, further enhancing his innovative projects and contributing to advancements in tunnel boring technology.
Conclusion
Yutaka Kashima's work in developing advanced tunnel boring machines and excavators showcases his commitment to innovation in the field. His patents reflect a deep understanding of the challenges in underground excavation and provide effective solutions that benefit the industry.