Company Filing History:
Years Active: 1990-1994
Title: Nobuju Takaoka: Innovator in Electrical Insulation Diagnostics
Introduction
Nobuju Takaoka is a prominent inventor based in Ibaraki, Japan. He has made significant contributions to the field of electrical engineering, particularly in diagnosing insulation deterioration in electrical apparatuses and power cables. With a total of 2 patents, Takaoka's work is vital for enhancing the safety and reliability of electrical systems.
Latest Patents
Takaoka's latest patents include a method for diagnosing insulation deterioration of an electric apparatus. This innovative technique involves applying an alternating current voltage to the insulation of two conductors. By detecting and amplifying the direct current component of the charging current, Takaoka's method allows for the determination of insulation deterioration based on the absolute value of the amplified direct current component.
Another significant patent focuses on diagnosing insulation deterioration of power cables. This method addresses issues caused by water trees in the insulation material. It involves measuring the charging current flowing from the power cable to the ground while a rated AC voltage is applied. By calculating the stray current and detecting the direct current component, Takaoka's approach enables accurate diagnosis of insulation deterioration based on the intrinsic direct current component.
Career Highlights
Nobuju Takaoka is associated with Hitachi Cable, Inc., where he applies his expertise in electrical engineering. His innovative methods have the potential to improve the longevity and safety of electrical systems, making him a valuable asset to the company and the industry.
Collaborations
Takaoka has worked alongside notable colleagues such as Kenichiro Soma and Kazuo Kotani. Their collaborative efforts contribute to advancing research and development in electrical insulation diagnostics.
Conclusion
Nobuju Takaoka's contributions to the field of electrical engineering through his innovative patents are noteworthy. His work not only enhances the understanding of insulation deterioration but also plays a crucial role in ensuring the safety and reliability of electrical systems.