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For the Inventor, By the Inventor

Hitachi, Japan

Tomoji Kitagishi

This inventor holds 10 USPTO granted patents. Top assignee: Hitachi, Ltd.. Active years: 1987-1997.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Tomoji Kitagishi. Retrieved from https://idiyas.com/inventor/tomoji-kitagishi

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

USPTO Granted Patents = 10

% Patents Active = 100.0

Average Co-Inventor Count = 5.2

ph-index = 6

Forward Citations = 80(Granted Patents)


Location History:

  • Hitachi, JP (1987 - 1992)
  • Ibaraki, JP (1994 - 1996)
  • Tokai-mura, JP (1997)

Company Filing History:

goldMedal10 out of 42,740 
 
Hitachi, Ltd.
 patents

Years Active: 1987-1997

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10 patents (USPTO):Explore Patents
1. 5640664 - Envelope feeding apparatus and electronic machine having envelope (1997-06-17),
2. 5504567 - Controller for roller fixing unit for color electrophotographic apparatus (1996-04-02),
3. 5481349 - Electrophotographic image fixing device avoiding offset in the image by (1996-01-02),
4. 5291254 - Electrophotographic recording apparatus (1994-03-01),
5. 5135319 - Ink ribbon cassette for use in a thermal transfer printer and having (1992-08-04),
6. 5094555 - Thermal printer and invertible ribbon cassette therefor including a (1992-03-10),
7. 4768894 - Thermal printer having a flat platen support mechanism (1988-09-06),
8. 4723853 - Thermal transfer printer (1988-02-09),
9. 4707708 - Thermal print head (1987-11-17),
10. 4641149 - Thermal transfer printer (1987-02-03),

Title: Tomoji Kitagishi: Innovator in Electronic Machinery

Introduction

Tomoji Kitagishi is a prominent inventor based in Hitachi, Japan. He has made significant contributions to the field of electronic machinery, holding a total of 10 patents. His innovative designs focus on enhancing the functionality and efficiency of electronic devices.

Latest Patents

Among his latest patents are the "Envelope Feeding Apparatus" and the "Controller for Roller Fixing Unit for Color Electrophotographic Apparatus." The envelope feeding apparatus is designed to seamlessly switch between popular paper and envelopes, ensuring equal force distribution during the feeding process. This apparatus features an elastic envelope pressing member that maintains consistent pressure on the envelopes. The controller for the roller fixing unit optimizes the heating process in color electrophotographic devices, ensuring that the surface temperature of the heating roller reaches the desired setting before the print medium arrives.

Career Highlights

Tomoji Kitagishi has dedicated his career to advancing technology at Hitachi, Ltd. His work has not only improved existing technologies but has also paved the way for new innovations in electronic machinery. His patents reflect a deep understanding of both mechanical and electronic systems, showcasing his expertise in the field.

Collaborations

Throughout his career, Kitagishi has collaborated with notable colleagues, including Masafumi Suzaki and Katsumasa Mikami. These partnerships have contributed to the development of cutting-edge technologies and have fostered a collaborative environment for innovation.

Conclusion

Tomoji Kitagishi's contributions to electronic machinery through his patents demonstrate his commitment to innovation and excellence. His work continues to influence the industry, making him a key figure in the realm of technology.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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