Tokyo, Japan

Kazuhiko Takahashi

USPTO Granted Patents = 78 

 

Average Co-Inventor Count = 2.6

ph-index = 9

Forward Citations = 319(Granted Patents)

Forward Citations (Not Self Cited) = 307(Dec 10, 2025)


Location History:

  • Kanagawa-ken, JP (1996)
  • Ichikawa, JP (2004 - 2006)
  • Hitachi, JP (2001 - 2015)
  • Chiba, JP (2018 - 2019)
  • Hachioji, JP (2005 - 2021)
  • Yokohama, JP (2009 - 2021)
  • Chiyoda-ku, JP (2020 - 2022)
  • Tokyo, JP (1994 - 2023)

Company Filing History:

goldMedal21 out of 42,508 
 
Hitachi, Ltd.
 patents
silverMedal15 out of 8,194 
 
Olympus Corporation
 patents
bronzeMedal10 out of 4,979 
 
Oki Electric Industry Co., Ltd.
 patents
49 out of 1,160 
 
Olympus Medical Systems Corporation
 patents
57 out of 4,714 
 
Ntt Docomo, Inc.
 patents
65 out of 342 
 
Nisshin Steel Co., Ltd.
 patents
73 out of 651 
 
Mitsubishi Hitachi Power Systems, Ltd.
 patents
82 out of 13,411 
 
Nissan Motor Company Limited
 patents
92 out of 567 
 
Tokyo Institute of Technology
 patents
101 out of 149 
 
Hitachi Powdered Metals Co., Ltd.
 patents
111 out of 52,751 
 
Kabushiki Kaisha Toshiba
 patents
121 out of 3 
 
Oki Electric Indusrty Co., Ltd
 patents
131 out of 4,631 
 
Mitsubishi Heavy Industries Limited
 patents
141 out of 1 
 
Fusho Ishii
 patent
151 out of 221 
 
Mitsubishi Power, Ltd.
 patents
161 out of 3 
 
Docomo, Inc.
 patents
171 out of 45 
 
Nippon Steel Nisshin Co., Ltd.
 patents
185 out of 832,880 
Other
 patents
where one patent can have more than one assignee

Years Active: 1994-2023

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Areas of Expertise:
Rotary Electric Machine
Optics of Wearable Display
Capsule Endoscope
Medical Device System
Surgical Apparatus
Electrical Rotating Machine
Turbogenerator
Blur Compensation
Image Presentation System
Temperature Sensor Installation
Manipulator Apparatus
Dynamo-Electric Machine
78 patents (USPTO):Explore Patents

Title: Kazuhiko Takahashi: Innovator in Rotary Electric Machines and Blur Compensation Systems

Introduction

Kazuhiko Takahashi, a brilliant inventor based in Tokyo, Japan, has made significant contributions to the field of electrical engineering with an impressive portfolio of 21 patents. His innovative designs reflect a deep understanding of rotary electric machines and advanced optical systems.

Latest Patents

Among his latest inventions, Takahashi's patent for a rotary electric machine with a two-pole rotor and three-phase armature winding stands out. This design integrates a stator core with fifty-four slots, housing an armature winding configured in two layers comprising top and bottom coil pieces. The winding features three parallel circuits and two phase belts per phase. His unique sequence arrangement in both coil pieces enhances the efficiency and performance of the machine. Another notable invention is the blur compensation system, which employs sophisticated mirrors and lenses to accurately redirect light of specific wavelengths, thereby improving image clarity and focus.

Career Highlights

Throughout his career, Takahashi has worked with prominent companies such as Oki Electric Industry Co., Ltd. and NTT Docomo, Inc. His professional journey with these organizations has allowed him to refine his expertise in developing groundbreaking technologies that pave the way for advancements in electrical machines and optical systems.

Collaborations

In his pursuit of innovation, Takahashi has collaborated with talented professionals in the field, including esteemed coworkers Yuji Aburakawa and Fusao Ishii. Their collective knowledge and diverse skill sets have contributed greatly to the success of their projects and patents.

Conclusion

Kazuhiko Takahashi is a prolific inventor whose work has significantly impacted the electrical engineering domain through his inventive patents and collaborations. With a commitment to innovation, he continues to shape the future of technology in Japan and beyond.

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