Location History:
- Miyagi, JP (1992 - 1999)
- Kanagawa, JP (2002 - 2011)
- Tokyo, JP (2004 - 2013)
Company Filing History:
11 out of 58,129 
1 out of 6 
1 out of 832,718 Years Active: 1992-2013
Title: Naoto Kojima: Innovator in Power Conversion and Holography
Introduction
Naoto Kojima is a prominent inventor based in Kanagawa, Japan, known for his significant contributions to the fields of power conversion and holography. With a total of 13 patents to his name, Kojima has developed innovative technologies that enhance efficiency and functionality in various applications.
Latest Patents
One of his latest inventions is a power converter with a magnetic recovery switch. This power converter stabilizes voltage by controlling the leading of an AC current and performs maximum charging within the contracted power reception amount when connected to a weak power system. It comprises a Magnetic Energy Recovery Switch that includes a bridge circuit with at least two reverse conductive type semiconductor switches and a magnetic energy accumulating capacitor connected between the DC terminals of the bridge circuit. This technology allows for efficient power conversion from AC to DC and vice versa, accommodating power among multiple secondary battery charging devices.
Another notable patent is a hologram recording/reproducing device and recording/reproducing optical apparatus. This device features a recording/reproducing optical unit that performs operations on a hologram recording medium. The optical unit includes a laser light source, a spatial-light modulator, a phase mask, and an objective lens designed for precise focusing. This invention enhances the capabilities of holographic technology, making it more accessible and effective for various applications.
Career Highlights
Throughout his career, Naoto Kojima has worked with renowned companies, including Sony Corporation. His experience in these organizations has allowed him to refine his skills and contribute to groundbreaking innovations in technology.
Collaborations
Kojima has collaborated with notable individuals in the industry, including Akio Mishima and Masaki Hara. These partnerships have fostered a creative environment that has led to the development of advanced technologies.
Conclusion
Naoto Kojima's work in power conversion and holography exemplifies the spirit of innovation. His patents reflect a commitment to enhancing technology and improving efficiency in various fields. His contributions continue to influence the industry and inspire future inventors.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.