Numazu, Japan

Tsutomu Nishiuwatoko


Average Co-Inventor Count = 2.7

ph-index = 15

Forward Citations = 973(Granted Patents)

Forward Citations (Not Self Cited) = 834(Oct 12, 2025)


Inventors with similar research interests:


Location History:

  • Suginami-ku, JP (1999)
  • Tokyo, JP (1996 - 2000)
  • Kashiwa, JP (2000 - 2003)
  • Shizuoka, JP (2005)
  • Numazu, JP (2010 - 2019)

Company Filing History:


Years Active: 1996-2019

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54 patents (USPTO):

Title: **Tsutomu Nishiuwatoko: A Pioneer in Image Forming Technology**

Introduction

Tsutomu Nishiuwatoko, a prolific inventor hailing from Numazu, Japan, has made significant contributions to the field of image forming technology. With an impressive portfolio of 54 patents, he has been an integral part of innovative developments at Canon Kabushiki Kaisha, a leading company in imaging and printing solutions.

Latest Patents

Nishiuwatoko's recent innovations include two notable patents for advanced image forming apparatuses. The first patent describes an image forming apparatus featuring a main assembly equipped with an opening and a drawer that supports a cartridge containing a photosensitive drum. This design allows for smooth movement of the cartridge from an inside position to an outside position while ensuring efficient operation of the optical unit and shutter member.

The second patent focuses on a detachable cartridge that is designed to prevent collisions between an exposing member and the cartridge during installation. A guide portion on the supporting member aids in guiding the cartridge into the correct mounting position, while a regulated portion and regulating portion work together to maintain proper alignment, thus enhancing the reliability of the image forming process.

Career Highlights

Throughout his career at Canon, Tsutomu Nishiuwatoko has distinguished himself as a leader in the development of image forming solutions. His commitment to innovation is evident in the breadth and depth of his patent portfolio, which reflects his dedication to enhancing the functionality and efficiency of imaging devices.

Collaborations

Nishiuwatoko has worked alongside notable colleagues such as Ken Kikuchi and Takashi Akutsu, further contributing to the innovative spirit at Canon. These collaborations have facilitated a dynamic exchange of ideas, fostering advancements that have set new benchmarks in the imaging industry.

Conclusion

With his extensive experience and inventive prowess, Tsutomu Nishiuwatoko continues to shape the landscape of image forming technology. His patents not only enhance Canon's product offerings but also exemplify the spirit of innovation that drives the industry forward. Nishiuwatoko's work stands as a testament to the impact that dedicated inventors can have on technological advancement.

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