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For the Inventor, By the Inventor

Osaka, Japan

P & Pf Co., Ltd.

Calculating rank
USPTO Granted Patents = 11

% Expired Patents = 9.1


Forward Citations = 28

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17 inventors (with patents filed for the assignee):

goldMedal Tetsuo Nishina (11 out of 16 patents)

silverMedal Yoshinobu Saito (10 out of 14 patents)

bronzeMedal Tomoko Toda (7 out of 7 patents)

4.  Uhei Tamura (6 out of 7 patents)

5.  Takahiro Okuda (6 out of 6 patents)

6.  Takahito Makita (5 out of 5 patents)

7.  Shogo Nagura (3 out of 3 patents)

8.  Yumiko Takeda (1 out of 2 patents)

9.  Saori Kajita (1 out of 1 patent)

10.  Shinya Yamasaki (1 out of 2 patents)

11.  Masahito Tanaka (1 out of 4 patents)

12.  Shinya Yamazaki (1 out of 1 patent)

13.  Daiji Nagahama (1 out of 2 patents)

14.  Kazuo Iwai (1 out of 2 patents)

15.  Nobuyuki Kishi (1 out of 4 patents)


11 patents:

1. 9376652 - Solid soap (2016-06-28),
2. 9301908 - Detergent composition (2016-04-05),
3. 9187721 - Framed soap and method for producing the same (2015-11-17),
4. 9163204 - Framed soap and process for producing same (2015-10-20),
5. 8785368 - Solid soap comprising trimethylglycine (2014-07-22),
6. 8772223 - Composition for solid washing agent, and solid washing agent (2014-07-08),
7. 8697620 - Solid soap (2014-04-15),
8. 8668923 - Filmy compositions (2014-03-11),
9. 7709432 - Solid soap composition comprising polysilxoxane and diamine (2010-05-04),
10. 7294609 - Cleansing foam agent comprising a polyglycerin monocarboxylate and hinokitiol bactericide (2007-11-13),
11. 6025312 - Antibacterial, bactericidal and antiseptic agent, dermatologic (2000-02-15),
Company Overview
P & Pf Co., Ltd., based in Osaka, Japan, specializes in the development and manufacturing of advanced materials and components for various industries. The company focuses on innovative solutions that enhance product performance and sustainability. With a strong emphasis on research and development, P & Pf is dedicated to advancing technologies in sectors such as electronics, automotive, and industrial applications. Their commitment to quality and innovation positions them as a key player in the global market.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 27 2026

11 Patents

#450 in Osaka

#4,140 in Japan

#51,812 in the World

Osaka, JP
Osaka, Japan

P & Pf Co., Ltd.

Forward Citations = 28

17 inventors:

goldMedal Tetsuo Nishina (11 out of 16 patents)

silverMedal Yoshinobu Saito (10 out of 14 patents)

bronzeMedal Tomoko Toda (7 out of 7 patents)

4.  Uhei Tamura (6 out of 7 patents)

5.  Takahiro Okuda (6 out of 6 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: P & Pf Co., Ltd.. Retrieved from https://idiyas.com/company/p-and-pf-company

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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