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For the Inventor, By the Inventor

Osaka, Japan

Stella Chemifa Corporation


USPTO Granted Patents = 51



Trademarks = 6

Forward Citations = 116

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66 inventors (with patents filed for the assignee):

goldMedal Tetsuo Nishida (24 out of 26 patents)

silverMedal Kazutaka Hirano (19 out of 19 patents)

bronzeMedal Masahide Waki (10 out of 18 patents)

4.  Shinji Hashiguchi (9 out of 12 patents)

5.  Akihiro Nabeshima (8 out of 17 patents)

6.  Megumi Tomisaki (8 out of 9 patents)

7.  Sojiro Kon (7 out of 7 patents)

8.  Yasutaka Tashiro (7 out of 8 patents)

9.  Masashi Yamamoto (7 out of 16 patents)

10.  Kazuhiro Miyamoto (6 out of 6 patents)

11.  Hiroaki Tokuda (6 out of 8 patents)

12.  Toshitaka Sakaguchi (5 out of 5 patents)

13.  Yoshifumi Katsura (5 out of 5 patents)

14.  Yoshinori Sato (5 out of 11 patents)

15.  Hirohisa Kikuyama (5 out of 32 patents)


Core Competencies:
Nonaqueous Electrolyte Solution
Fluoride Particles
Red Phosphor
Fuel Cell Catalyst
Carbon Material
Quaternary Ammonium Salt
Hollow Structural Body
Fluorine Compound
Electrochemical Device
Semiconductor Device
Radiation Detector
Scintillator

51 patents:

1. 12422591 - Liquid dispersion of fluoride particles and method for producing same, and optical film (2025-09-23),
2. 12191448 - Nonaqueous electrolyte solution for secondary battery, and secondary battery provided with said solution (2025-01-07),
3. 11965123 - Red phosphor and method for producing same (2024-04-23),
4. 11964871 - Immobilized product and method for producing same (2024-04-23),
5. 11548993 - Method for modifying fluoring resin film (2023-01-10),
6. 11469424 - Fuel cell catalyst, membrane electrode assembly for fuel cell, and fuel cell including the same (2022-10-11),
7. 11180515 - Non-aqueous electrolytic solution for power storage element (2021-11-23),
8. 11155465 - Cross-linked structure of carbon material and method for producing same (2021-10-26),
9. 11005125 - Nonaqueous electrolyte solution for secondary batteries and secondary battery provided with same (2021-05-11),
10. 10938066 - Nonaqueous electrolyte solution for secondary batteries and secondary battery provided with same (2021-03-02),
11. 10793585 - Phosphoric acid diester salt, production method therefor, non-aqueous electrolytic solution for power storage element, and power storage element (2020-10-06),
12. 10112835 - Method for purifying difluorophosphate (2018-10-30),
13. 10046971 - Nitrogen-containing carbon material and method of manufacturing the same (2018-08-14),
14. 9731968 - Process for producing fluoride gas (2017-08-15),
15. 9624107 - Method for producing difluorophosphate (2017-04-18),
Stella Chemifa Corporation is a global chemical manufacturing company. With over 60 years of experience, Stella Chemifa specializes in the production of high-quality chemicals for various industries including semiconductor, electronics, and pharmaceuticals. The company is committed to delivering innovative and sustainable solutions, meeting the highest standards of quality and safety. Visit their website for more information.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Dec 30 2025

51 Patents

#158 in Osaka

#1,651 in Japan

#13,381 in the World

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Osaka, Japan

Stella Chemifa Corporation

Forward Citations = 116

66 inventors:

goldMedal Tetsuo Nishida (24 out of 26 patents)

silverMedal Kazutaka Hirano (19 out of 19 patents)

bronzeMedal Masahide Waki (10 out of 18 patents)

4.  Shinji Hashiguchi (9 out of 12 patents)

5.  Akihiro Nabeshima (8 out of 17 patents)

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