Location History:
- Atugi, JP (1986)
- Atsugi, JP (1990)
Company Filing History:
Years Active: 1986-1990
Title: Chiharu Harayama: Innovator in Snorkel and Electrical Cable Technology
Introduction
Chiharu Harayama is a notable inventor based in Atsugi, Japan. She has made significant contributions to the fields of underwater breathing devices and flexible electrical cables. With a total of two patents to her name, her innovations reflect a blend of practicality and advanced engineering.
Latest Patents
One of her latest patents is a snorkel device designed for breathing under the surface of water. This innovative snorkel allows both inhaling and exhaling of air underwater. It features a multiplicity of water impermeable tubes that are permeable to dissolved or gaseous oxygen, facilitating the underwater passage of oxygen into the snorkel. The preferred tube material for this invention is porous expanded polytetrafluoroethylene.
Another significant patent is for an improved, highly flexible flat multi-conductor electrical cable. This cable is particularly useful in robotics, where it may be flexed numerous times. The design comprises a plurality of conductor assemblies held in parallel between layers of insulating coverings. The improvement includes conductor assemblies with an elongate, non-conductive center core filament that is helically overwrapped by a first conductor in foil or tape form, such as copper foil. This first tape conductor is then covered with a conductive, low-friction material, which is also helically overwrapped by a second conductor in foil or tape form. The preferred core filament material is expanded, porous, sintered polytetrafluoroethylene, while the insulating coverings are layers of polytetrafluoroethylene.
Career Highlights
Chiharu Harayama is currently associated with Junkosha Co., Ltd., where she continues to innovate and develop new technologies. Her work has garnered attention for its practical applications and advanced design.
Conclusion
Chiharu Harayama stands out as a pioneering inventor whose work in snorkel technology and flexible electrical cables showcases her commitment to innovation. Her contributions are valuable to both the fields of underwater exploration and robotics.