Location History:
- Kasugai, JP (2007 - 2008)
- Nagakute-tyou, JP (2009)
- Aichi-gun, JP (2010 - 2012)
- Nagakute-tyo, JP (2012)
- Aichi-ken, JP (2014)
- Aichi, JP (2014)
- Nagakute, JP (2014 - 2017)
- Komaki, JP (2019)
Company Filing History:
13 out of 720 
5 out of 340 
1 out of 447 
Years Active: 2007-2019
Title: **Mutsumi Muraoka: A Pioneer in Vibration Damping Technology**
Introduction
Mutsumi Muraoka, an innovative inventor based in Kasugai, Japan, has made significant contributions to the field of vibration damping technology. With a remarkable portfolio of 18 patents, Muraoka's work continues to influence various industries, enhancing the performance and durability of products that require effective vibration control.
Latest Patents
Among Muraoka's latest inventions are two notable fluid-filled vibration-damping devices. The first patent describes a fluid-filled vibration-damping device featuring first and second mounting members connected elastically by a main rubber elastic body. This design incorporates a fluid chamber with walls partially made up of the main rubber elastic body. The sealing member on the second mounting member includes a step part, along with an attaching tube part and a sealing tube part, which are positioned on opposite sides of the step. A press-fit projection ensures secure attachment of the second mounting member into the attaching tube part, while a transmission prevention part minimizes stress transfer during operation.
The second patented device also focuses on fluid-filled vibration damping. It showcases a main unit comprising a rubber elastic body that connects two mounting members, along with a fluid chamber. This device includes a temporary joint member that locks onto the second mounting member, allowing for temporary axial coupling. An annular sealing part enhances the effectiveness of the seal by pressing the sealing rubber, which further improves the compression ratio and achieves a full seal.
Career Highlights
Throughout her career, Muraoka has worked with prestigious companies such as Tokai Rubber Industries and Sumitomo Riko Company Limited. Her role in these organizations has allowed her to develop and refine her expertise in vibration damping technologies, leading to her innovative patent developments.
Collaborations
Muraoka has collaborated with notable colleagues, including Hironori Koyama and Atsushi Muramatsu. These partnerships have facilitated knowledge sharing and contributed to the advancement of their work in the field of vibration damping.
Conclusion
Mutsumi Muraoka stands out as a leading inventor in vibration damping technology, with a legacy built on her patents and professional collaborations. Her innovative designs are paving the way for improved performance in numerous applications, showcasing the critical role of inventors in modern technology. Muraoka's commitment to excellence and collaboration continues to inspire future innovations in the industry.