Company Filing History:
5 out of 42,526 
1 out of 497 
1 out of 2,333 
Years Active: 2002-2011
Title: Koichiro Ohara: Innovator in Motor Technology
Introduction
Koichiro Ohara is a notable inventor based in Chiba, Japan. He has made significant contributions to the field of motor technology, holding a total of 5 patents. His innovative designs focus on enhancing the efficiency and performance of electric motors.
Latest Patents
One of his latest patents is for a coreless motor. This design aims to minimize the gap size while utilizing a magnet with a high energy product to increase the magnetic flux density. The coreless motor, which lacks an iron core, typically has a lower magnetic flux density in the gap area. Ohara's design includes a rotor core with a permanent magnet rotor, created through a compression molding process. This rotor is made from a compact formed by molding a powder material, which consists of a bond magnetic portion and a soft magnetic portion. The bond magnetic portion features magnetic poles that are mechanically bonded to the soft magnetic portion, addressing inherent challenges in motor design.
Another significant patent involves an electric rotating machine that features a stator with a core formed by stacking multiple stator steel sheets. This machine includes stator coils mounted on the stator core and a rotor with a rotation shaft positioned within the stator's inner perimeter. The design incorporates a molded resin frame that houses the stator and end brackets that support the rotor's rotation shaft via bearings. Each end bracket is secured to the stator with through bolts, and the stator steel sheets function as a magnetic circuit, enhancing the overall efficiency of the machine.
Career Highlights
Throughout his career, Koichiro Ohara has worked with prominent companies such as Hitachi, Ltd. and Hitachi Industrial Equipment Systems Co., Ltd. His experience in these organizations has contributed to his expertise in motor technology and innovation.
Collaborations
Ohara has collaborated with talented individuals in the field, including Toshihiko Sakai and Takuya Kawashima. These partnerships have fostered a creative environment that has led to advancements in motor design and technology.
Conclusion
Koichiro Ohara's contributions to motor technology through his innovative patents and collaborations highlight his role as a significant inventor in the industry. His work continues to influence the development of efficient electric motors.