Yuji Yamaguchi

This inventor holds 11 USPTO granted patents. Top assignees: Aisin Seiki Kabushiki Kaisha, Inax Corporation. Active years: 1978-1999.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yuji Yamaguchi. Retrieved from https://idiyas.com/inventor/yuji-yamaguchi-44kq64oc

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

Calculating rank

USPTO Granted Patents = 11

% Patents Active = 100.0

Average Co-Inventor Count = 3.0

ph-index = 8

Forward Citations = 154(Granted Patents)

Location History:

Anjyo, JP (1983)
Kariya, JP (1985)
Aichi, JP (1997)
Anjo, JP (1978 - 1999)

Company Filing History:

11 out of 5,207

Aisin Seiki Kabushiki Kaisha

where one patent can have more than one assignee

Years Active: 1978-1999

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11 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 5953765 - Sanitary device having commonly driven washing and drying devices (1999-09-21),

2. 5765238 - Human private parts washing apparatus (1998-06-16),

3. 5625294 - Apparatus for detecting seated condition for toilet seat (1997-04-29),

4. 5095555 - Toilet seat structure having heater and thermo-sensor wires (1992-03-17),

5. 4987617 - Nozzle mechanism in a sanitary device (1991-01-29),

6. 4841582 - Washer construction for a sanitary device (1989-06-27),

7. 4559964 - Valve unit for a washing device of private parts of human body (1985-12-24),

8. 4551868 - Washing device for parts of body (1985-11-12),

9. 4411030 - Apparatus for drying genitals and the posterior parts of human body (1983-10-25),

10. 4391004 - Spraying device for use in toilet bowls (1983-07-05),

11. 4123807 - Retractable bidet (1978-11-07),

Title: Yuji Yamaguchi: Innovator in Sanitary Devices

Introduction

Yuji Yamaguchi is a notable inventor based in Anjo, Japan. He has made significant contributions to the field of sanitary devices, holding a total of 11 patents. His innovative designs focus on enhancing hygiene and comfort in personal care.

Latest Patents

One of Yamaguchi's latest patents is a sanitary device that features commonly driven washing and drying devices. This device includes a washing mechanism that ejects water under pressure to clean the human anus when it transitions from a rest position to an operating position. Additionally, it incorporates a drying device that blows hot air to dry the washed area, with an air deflector that rotates to optimize airflow. Another notable invention is a human private parts washing apparatus, which consists of two nozzle devices designed for washing different areas, along with a stand and a driving device that allows the nozzles to move back and forth.

Career Highlights

Throughout his career, Yuji Yamaguchi has worked with prominent companies such as Aisin Seiki Kabushiki Kaisha and Inax Corporation. His experience in these organizations has contributed to his expertise in developing innovative sanitary solutions.

Collaborations

Yamaguchi has collaborated with talented individuals in the industry, including Shinji Kawai and Hideki Furukawa. These partnerships have likely fostered creativity and innovation in his projects.

Conclusion

Yuji Yamaguchi's contributions to sanitary device technology reflect his commitment to improving personal hygiene. His innovative patents and collaborations highlight his role as a significant inventor in this field.

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]