% Expired Patents = 25.0

Forward Citations = 120

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11 inventors (with patents filed for the assignee):

Ryutaro Hidaka (4 out of 4 patents)

Junichi Nonaka (2 out of 3 patents)

Makoto Ishii (2 out of 2 patents)

4. Jun-ichi Nonaka (2 out of 2 patents)

5. Shin Tanaka (2 out of 2 patents)

6. Masahiro Kato (1 out of 1 patent)

7. Akinori Tanaka (1 out of 5 patents)

8. Masahiro Sasagawa (1 out of 1 patent)

9. Hiromitsu Adachi (1 out of 1 patent)

10. Kazunori Hoshino (1 out of 10 patents)

11. Kimio Yabuno (1 out of 1 patent)

8 patents: Sort by Forward Citations

1. 8043421 - Durable automotive windshield coating and the use thereof (2011-10-25),

2. 6987074 - Paintwork coating composition and coating cloth (2006-01-17),

3. 6653393 - Paintwork coating composition and coating cloth (2003-11-25),

4. 6475934 - Wet cloth for cleaning, water repellent finish and polishing of automobile paint film (2002-11-05),

5. 6309984 - Agent for treating water repellency supply cloth and water repellency supply cloth (2001-10-30),

6. 5971230 - Spray quantity control nozzle for aerosol container (1999-10-26),

7. 5918780 - Spray quantity control nozzle for aerosol container (1999-07-06),

8. 5752631 - Valve device for aerosol container (1998-05-19),

Company Overview

Soft 99 Corporation is a leading manufacturer of automotive detailing products based in Japan. With over 60 years of experience, Soft 99 has established itself as a trusted brand known for its high-quality, innovative products. The company offers a wide range of car care products, including waxes, polishes, cleaners, and coatings, designed to protect and enhance the appearance of vehicles. Soft 99 is committed to providing customers with superior products that deliver exceptional results and exceed expectations.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

8 Patents

#543 in Osaka

#5,049 in Japan

Osaka, Japan

Soft 99 Corporation

Forward Citations = 120

11 inventors:

Ryutaro Hidaka (4 out of 4 patents)

Junichi Nonaka (2 out of 3 patents)

Makoto Ishii (2 out of 2 patents)

4. Jun-ichi Nonaka (2 out of 2 patents)

5. Shin Tanaka (2 out of 2 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Soft 99 Corporation. Retrieved from https://idiyas.com/company/soft-99

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]