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For the Inventor, By the Inventor

Tokyo, Japan

Plus Stationery Corporation

Calculating rank
USPTO Granted Patents = 38

% Expired Patents = 21.1


Trademarks = 1

Forward Citations = 281

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15 inventors (with patents filed for the assignee):

goldMedal Satoru Ono (10 out of 12 patents)

silverMedal Yasuo Narita (9 out of 16 patents)

bronzeMedal Hiroyuki Ariga (8 out of 20 patents)

4.  Katsuaki Takahashi (3 out of 38 patents)

5.  Megumi Tanabe (3 out of 4 patents)

6.  Jun Ushijima (3 out of 5 patents)

7.  Takeshi Matsukawa (3 out of 5 patents)

8.  Ko Isozaki (3 out of 6 patents)

9.  Sotaro Miyagi (2 out of 2 patents)

10.  Yusuke Yonestu (2 out of 2 patents)

11.  Hideki Inoue (1 out of 53 patents)

12.  Mitsuru Wakabayashi (1 out of 3 patents)

13.  Xiao Dong Wu (1 out of 1 patent)

14.  Mizuki Hara (1 out of 2 patents)

15.  Ai Kaneda (1 out of 1 patent)


Core Competencies:
Coating Film Transfer Tool
Folder Binding Device
Hole-Piercing Punch
Stapler
Transparent Case
Correction Tape
Film-Transferring Device
Cartridge Refill
Tape Holder
Security Pattern
Non-Transparent Case
Small Diameter Roller

38 patents:

1. 8297329 - Coating film transfer tool (2012-10-30),
2. 8297328 - Coating film transfer tool (2012-10-30),
3. 8256975 - Coating film transfer tool (2012-09-04),
4. D661353 - Film transfer tool for stationary (2012-06-05),
5. 8192101 - Folder binding device (2012-06-05),
6. 8047112 - Hole-piercing punch (2011-11-01),
7. 7992618 - Coating-film transfer tool (2011-08-09),
8. 7832609 - Stapler (2010-11-16),
9. D622570 - Stapler (2010-08-31),
10. D619175 - Paper punch (2010-07-06),
11. D619172 - Transparent case for a correction tape/glue tape (with transparent refill) (2010-07-06),
12. D616500 - Non-transparent case for a correction tape/glue tape (2010-05-25),
13. D612890 - Hole punch for stationery (2010-03-30),
14. D611992 - Film transfer tool for stationery (2010-03-16),
15. D611541 - Transparent correction type tape with a security pattern (2010-03-09),
Company Overview
Plus Stationery Corporation, headquartered in Tokyo, specializes in the development and manufacturing of high-quality stationery products. The company is recognized for its innovative designs and commitment to enhancing the user experience through functional and aesthetically pleasing office supplies. Plus Stationery focuses on various domains, including writing instruments, paper products, and organizational tools, catering to both individual consumers and businesses. Its dedication to quality and design positions it as a leader in the stationery industry in Japan and beyond.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 27 2026

38 Patents

#951 in Tokyo

#2,029 in Japan

#17,870 in the World

Tokyo, JP
Tokyo, Japan

Plus Stationery Corporation

Forward Citations = 281

15 inventors:

goldMedal Satoru Ono (10 out of 12 patents)

silverMedal Yasuo Narita (9 out of 16 patents)

bronzeMedal Hiroyuki Ariga (8 out of 20 patents)

4.  Katsuaki Takahashi (3 out of 38 patents)

5.  Megumi Tanabe (3 out of 4 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Plus Stationery Corporation. Retrieved from https://idiyas.com/company/plus-stationery

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

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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