Sohji Tsuchiya

This inventor holds 24 USPTO granted patents, primarily in Electrophotography Materials. Top assignees: Matsushita Electric Industrial Co., Ltd., Takomoto Oil & Fat Co., Ltd.. Active years: 1987-1997.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Sohji Tsuchiya. Retrieved from https://idiyas.com/inventor/sohji-tsuchiya

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

USPTO Granted Patents = 24

% Patents Active = 100.0

Average Co-Inventor Count = 3.9

ph-index = 12

Forward Citations = 351(Granted Patents)

Location History:

Tsukui, JP (1989 - 1994)
Kanagawa, JP (1987 - 1995)
Kanagawa-ken, JP (1997)

Company Filing History:

24 out of 27,375

Matsushita Electric Industrial Co., Ltd.

patents

1 out of 1

Takomoto Oil & Fat Co., Ltd.

patent

where one patent can have more than one assignee

Years Active: 1987-1997

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Areas of Expertise:

Electrophotography

Photosensitive Materials

Solid Electrolytic Capacitors

Charge Transfer Complex

Organic Photoconductive Material

Dielectric Element

Photoelectrochemical Cells

Electrochromic Display

Metal-Free Photosensitive Material

Multi-Layered Structure

Air/Fuel Ratio Sensor

Isocyanate Binder

24 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 5604524 - Electrostatic image forming apparatus (1997-02-18),

2. 5424158 - Photosensitive material for electrophotography comprising metal free (1995-06-13),

3. 5389477 - Photosensitive material for electrophotography and method for making the (1995-02-14),

4. 5328788 - Organic photoconductive material for electrophotography and method for (1994-07-12),

5. 5312705 - Photosensitive materials for electrophotography having a double-layer (1994-05-17),

6. 5304444 - Photosensitive material for electrophotography comprising organic (1994-04-19),

7. 5204203 - Electrophotographic element with blocked isocyanate binder (1993-04-20),

8. 5185208 - Functional devices comprising a charge transfer complex layer (1993-02-09),

9. 5140502 - Solid electrolytic capacitors and method for manufacturing the same (1992-08-18),

10. 5117332 - Solid electrolytic capacitors and method for manufacturing the same (1992-05-26),

11. 5087540 - Phthalocyanine photosensitive materials for electrophotography and (1992-02-11),

12. 5077270 - Elements comprising a film of a perovskite compound whose (1991-12-31),

13. 5071521 - Method for manufacturing a solid electrolytic capacitor (1991-12-10),

14. 5009958 - Functional devices comprising a charge transfer complex layer (1991-04-23),

15. 4985330 - Photosensitive material for electrophotography and method for making same (1991-01-15),

Title: Sohji Tsuchiya: Pioneer in Electrostatic Imaging

Introduction

Sohji Tsuchiya is a noteworthy inventor residing in Kanagawa, Japan. He holds an impressive portfolio of 24 patents, primarily in the field of electrostatic image forming technology. His contributions to this innovative domain are significant, underpinned by his commitment to advancing imaging technology.

Latest Patents

Among his latest inventions is an electrostatic image forming apparatus. This apparatus features a sensitized drum covered with a single organic photosensitive layer (OPC), which is rotatable at a predetermined speed. The design includes a charging device that uniformly charges the surface of the OPC, as well as a latent image forming device that produces a latent image on the OPC. Additionally, a developed image forming device creates a developed image from this latent image. The system is meticulously engineered, with attention to the distance parameters between the charging device and the related components.

Another recent patent involves a photosensitive material for electrophotography that comprises a support layer and an organic photoconductive layer of single-layer structure. This structure integrates a binder polymer, which includes a particulately dispersed electron acceptor substance, along with a metal-free phthalocyanine molecularly dispersed in the binder polymer. These innovations are pivotal in enhancing the performance and efficiency of electrophotographic technologies.

Career Highlights

Sohji Tsuchiya has had a dynamic career, having worked with notable companies such as Matsushita Electric Industrial Co., Ltd. and Takomoto Oil & Fat Co., Ltd. His experience in these organizations has allowed him to hone his skills in research and development, leading to the creation of groundbreaking patents that push the boundaries of imaging technology.

Collaborations

Throughout his career, Tsuchiya has collaborated with esteemed coworkers, including Toshikuni Kojima and Susumu Yoshimura. These partnerships have fostered a creative environment where innovative ideas can flourish, contributing immensely to the success of their projects.

Conclusion

Sohji Tsuchiya exemplifies the spirit of innovation in the field of imaging technology. His extensive portfolio of patents and collaborations highlights his dedication to the advancement of electrostatic image forming methods. As technology continues to evolve, Tsuchiya's contributions remain influential in shaping the future of imaging solutions.

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]