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For the Inventor, By the Inventor

Hitachi, Japan

Hideki Nihei

USPTO Granted Patents = 15

Average Co-Inventor Count = 5.6

ph-index = 11

Forward Citations = 308(Granted Patents)


Location History:

  • Hitachi, JP (1988 - 1993)
  • Hitachioota, JP (1993 - 1995)
  • Hitachiota, JP (1995 - 2012)

Company Filing History:

goldMedal15 out of 42,485 
 
Hitachi, Ltd.
 patents
silverMedal1 out of 152 
 
Japan Servo Co.,ltd.
 patents
where one patent can have more than one assignee

Years Active: 1988-2012

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15 patents (USPTO):
1. 8207694 - Motor controller (2012-06-26),
2. 8040010 - Permanent magnet type generator and hybrid vehicle using the same (2011-10-18),
3. 6382361 - Elevator (2002-05-07),
4. 5453972 - Optical disk apparatus (1995-09-26),
5. 5432644 - Disk drive unit having motor components in a compact arrangement (1995-07-11),
6. 5245232 - Linear actuator (1993-09-14),
7. 5177717 - Optical memory medium and its information recording and erasing method (1993-01-05),
8. 5055731 - High-speed two-dimensional electrostatic actuator (1991-10-08),
9. 4983875 - Actuator (1991-01-08),
10. 4945268 - Permanent magnet type linear pulse motor (1990-07-31),
11. 4857786 - Structure of stepping motor and method of driving the stepping motor (1989-08-15),
12. 4811328 - Optical recording and reproducing device (1989-03-07),
13. 4775967 - Beam spot control device using a thin micro lens with an actuator (1988-10-04),
14. 4773060 - Optical information recording device (1988-09-20),
15. 4718053 - Optical information apparatus and method of recording and erasing (1988-01-05),

Title: Innovator Hideki Nihei: Pioneering Advances in Motor Control and Generation

Introduction: Hideki Nihei is a prominent inventor hailing from Hitachi, Japan, with a wealth of experience and a significant contribution to technology, boasting a remarkable total of 15 patents. His innovative work has focused on enhancing motor control systems and developing advanced generators, which have applications in various fields, including hybrid vehicles.

Latest Patents: Among his latest inventions, Nihei has developed a motor controller that calculates a DC current set point for an inverter when the torque command value is zero. This inventive solution estimates and corrects errors in magnetic pole position, preventing unwanted power running and regenerative torque, as well as unnecessary charge or discharge to or from a battery. Another notable invention is the permanent magnet type generator, which includes a stator and a rotor designed with specific magnetic paths. This invention enhances the efficiency of hybrid vehicles by optimizing the generator's performance.

Career Highlights: Nihei's professional journey includes significant stints at esteemed companies such as Hitachi, Ltd. and Japan Servo Co., Ltd. His expertise and dedication to innovation have allowed him to make meaningful advancements in his field.

Collaborations: Throughout his career, Hideki Nihei has had the privilege of collaborating with talented individuals, including colleagues Nobuyoshi Tsuboi and Hiroshi Sasaki. These collaborations have further enriched his work and contributed to the success of his inventions.

Conclusion: Hideki Nihei's inventive spirit and dedication to innovation have led to impactful developments in motor control and generator technology. His patents not only showcase his creative solutions but also highlight his commitment to improving efficiency in various applications, particularly in the realm of hybrid vehicles. As he continues to innovate, Nihei remains a significant figure in the landscape of modern technology.

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