Location History:
- Sasage Sakura-mura, Niihari-gun, Ibaraki-ken, JP (1986)
- Sakura, JP (1986)
- Namiki, Sakuramura, Niihara-gun, Ibaraki-ken, JP (1986)
- Tsukuba, Ibaraki, JP (1991)
- Tsukuba-shi, Ibaraki-ken, JP (1992)
- Tsukuba, JP (1990 - 1998)
Company Filing History:
3 out of 27,375 
2 out of 2 
2 out of 2 Years Active: 1986-1998
Title: **Innovations of Hajime Ishimaru: A Pioneer in Vacuum Technology**
Introduction
Hajime Ishimaru is a distinguished inventor based in Tsukuba, Japan, known for his significant contributions to vacuum technology. With a total of 10 patents to his name, Ishimaru has developed innovative solutions that have improved various applications, particularly in the packing and insulation industries.
Latest Patents
Among his notable inventions, Hajime Ishimaru has introduced two groundbreaking patents:
1. **Quick Pressure Reducing Apparatus**
This apparatus is designed for vacuum packing of clothing, food, and other products. It facilitates a rapid transition from atmospheric pressure to a reduced pressure state within a preservation bag. The system employs a reservoir tank connected to a rotary pump, allowing the internal pressure of the preservation bag to be decreased efficiently. An adapter with a retractable communicating tubular member ensures a smooth and quick reduction in internal pressure while preventing blockages created by the bag's opening.
2. **Heat Insulating Film**
This innovative film consists of a layered structure that includes a plastic film, surface metal layer, thin metal layer, and protective membrane. The film's unique design reflects heat rays effectively while minimizing absorption, significantly enhancing insulation performance. The arrangement of flat crystal grains in the thin metal layer further optimizes its thermal reflective properties.
Career Highlights
Throughout his career, Hajime Ishimaru has spent valuable time working with renowned companies such as Matsushita Electric Industrial Co., Ltd. His expertise and innovative thinking have enabled him to develop technologies that not only meet but also set industry standards.
Collaborations
Ishimaru has collaborated with prominent coworkers like Hiroshi Saeki and Junji Ikeda. Together, they have combined their skills and knowledge, contributing further to advancements in technology and innovation within their respective fields.
Conclusion
Hajime Ishimaru is a remarkable inventor whose work in vacuum technology exemplifies creativity and functionality. His latest patents demonstrate not only his technical prowess but also his commitment to improving everyday processes through innovative solutions. As he continues to develop new inventions, the impact of his work is likely to resonate throughout the industry and inspire future innovators.