Yokkaichi, Japan

Morihiko Toyozumi

This inventor holds 9 USPTO granted patents and 3 EPO patents. Top assignees: Sumitomo Wiring Systems, Limited, Sumitomo Electric Industries, Limited, Harness System Technologies Research, Ltd.. Active years: 1994-2012.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Morihiko Toyozumi. Retrieved from https://idiyas.com/inventor/morihiko-toyozumi

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


% Patents Active = 77.8

 

Average Co-Inventor Count = 2.2

ph-index = 4

Forward Citations = 147(Granted Patents)


Location History:

  • Mie, JP (1994 - 1995)
  • Mie-ken, JP (1996)
  • Nagoya, JP (2000 - 2002)
  • Yokkaichi, JP (2000 - 2012)

Company Filing History:


Years Active: 1994-2012

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9 patents (USPTO):Explore Patents

Title: **Inventor Spotlight: Morihiko Toyozumi**

Introduction

Morihiko Toyozumi is a notable inventor based in Yokkaichi, Japan. With a portfolio consisting of nine patents, he has made significant contributions to the field of automotive components, particularly in enhancing the functionality and efficiency of wiring and sound absorption in vehicles.

Latest Patents

Among his latest innovations, Toyozumi has developed a unique grommet design that features a three-section tubular structure designed to optimize sound absorption. The grommet contains a smaller diameter tubular section connected to an increasing diameter tubular section and a larger diameter tubular section. Notably, a U-shaped folded portion facilitates the insertion of the grommet into a through-hole, allowing it to return to its original shape upon engagement with a vehicle body latching recess.

Another key invention is an arranging structure for wire harnesses in vehicle doors. This design allows the wire harness to span between the door and vehicle body, accommodating the opening and closing of the door. An excess length portion of the harness is cleverly integrated to follow the door's movement, ensuring functionality is maintained without compromising space.

Career Highlights

Toyozumi has been associated with leading companies in the automotive wiring industry, including Sumitomo Wiring Systems, Limited and Sumitomo Electric Industries, Limited. His background in these organizations has played a crucial role in refining his inventive capabilities.

Collaborations

Throughout his career, Morihiko Toyozumi has collaborated with esteemed colleagues such as Naohiro Nakatsuji and Isao Tsuji. These collaborations have allowed him to enhance his work through shared knowledge and collective expertise in engineering and design.

Conclusion

Morihiko Toyozumi exemplifies the spirit of innovation in the automotive industry. His patents not only reflect his technical expertise but also demonstrate a commitment to improving everyday vehicle functionality. As he continues to develop new solutions, his work will undoubtedly contribute to the ongoing advancement of automotive 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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