Location History:
- Matsusaka, JP (2005)
- Mie, JP (2007 - 2010)
Company Filing History:
2 out of 27,375 
1 out of 16,453 
Years Active: 2005-2010
Title: The Innovations of Tomio Marui
Introduction
Tomio Marui is a notable inventor based in Mie, Japan. He has made significant contributions to the field of electrical engineering, particularly in transformer technology. With a total of 3 patents to his name, Marui's work has had a considerable impact on power conversion systems.
Latest Patents
One of Marui's latest patents is a transformer design that includes a coil part with a first bobbin for mounting the coil. This innovative design features a second bobbin that fits onto the first bobbin, with the coil part sandwiched between magnetic cores. The first bobbin incorporates lead drawing through holes, allowing for improved insertion capability of the coil and preventing displacement and erroneous wiring. This advancement enhances workability and enables the production of cost-effective products.
Another significant patent is for a power conversion module device and power unit. This invention mounts a transformer, a primary power element, and a secondary power element on a printed wiring board in surface-to-surface contact. By eliminating the need for a control circuit, this design reduces impedance and loss in wiring, improving the voltage waveform of the primary power element. Consequently, noise reduction is achieved, and heat generated from the components can be effectively managed, allowing for a reduction in transformer size.
Career Highlights
Throughout his career, Tomio Marui has worked with prominent companies such as Matsushita Electric Industrial Co., Ltd. and Panasonic Corporation. His experience in these organizations has contributed to his expertise in electrical engineering and innovation.
Collaborations
Marui has collaborated with notable colleagues, including Koji Nakashima and Satoru Taniguchi. These partnerships have likely fostered a creative environment that has led to the development of his innovative patents.
Conclusion
Tomio Marui's contributions to transformer technology and power conversion systems demonstrate his significant role as an inventor. His innovative designs and patents reflect his commitment to improving electrical engineering practices.