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For the Inventor, By the Inventor

Osaka, Japan

Ishihara Sangyo Kaisha, Ltd.


USPTO Granted Patents = 393



Trademarks = 41

Forward Citations = 2,282

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411 inventors (with patents filed for the assignee):

goldMedal Takahiro Haga (61 out of 62 patents)

silverMedal Kanichi Fujikawa (40 out of 40 patents)

bronzeMedal Toru Koyanagi (34 out of 35 patents)

4.  Ryuzo Nishiyama (34 out of 34 patents)

5.  Isao Yokomichi (32 out of 32 patents)

6.  Nobuyuki Sakashita (31 out of 31 patents)

7.  Ryu Yamada (25 out of 25 patents)

8.  Masayuki Morita (22 out of 22 patents)

9.  Hideo Sugi (22 out of 22 patents)

10.  Nobutoshi Yamada (21 out of 22 patents)

11.  Takashi Terada (18 out of 19 patents)

12.  Tadaaki Toki (18 out of 18 patents)

13.  Ryohei Takahashi (18 out of 18 patents)

14.  Yasuhiro Tsujii (17 out of 17 patents)

15.  Itaru Shigehara (17 out of 18 patents)


Core Competencies:
Agricultural Chemicals
Fungicidal Composition
Herbicidal Composition
Titanium Oxide
Organic Semiconductor Material
Peptide Disease Control
Pesticidal Composition
Near Infrared Reflective Pigment
Soybean Disease Control
Flaky Titanate
Microcapsule Suspension
Trifluoromethyl Pyridine

393 patents:

1. 12473259 - Anhydrous crystal of monosodium n-(2-ethylsulfonylamino-5-trifluoromethyl-3-pyridyl)cyclohexane carboxamide (2025-11-18),
2. 12439912 - Agricultural chemical preparation containing difenoconazole, and method for stabilizing said agricultural chemical preparation (2025-10-14),
3. 12396987 - Pharmaceutical composition with excellent storage stability (2025-08-26),
4. 12331062 - Compound, production method therefor, and organic semiconductor material obtained using said compound (2025-06-17),
5. 12239133 - Herbicidal composition (2025-03-04),
6. 12221355 - Titanium oxide particles and manufacturing method therefor (2025-02-11),
7. 12096773 - Herbicidal composition (2024-09-24),
8. PP35798 - plant named '311NR' (2024-05-07),
9. 11950592 - Method for enhancing plant disease controlling effects of aryl phenyl ketone fungicide, and method for controlling plant diseases (2024-04-09),
10. 11912684 - N-(4-pyridyl)nicotinamide compound or salt thereof (2024-02-27),
11. 11702560 - Titanium dioxide aqueous dispersion and method for producing same (2023-07-18),
12. 11653650 - Fungicide composition and method for controlling disease of crop (2023-05-23),
13. 11623992 - Flaky titanate and method for production thereof, and use thereof (2023-04-11),
14. 11512205 - Composite pigment and production method thereof, paint composition containing composite pigment, and coating film (2022-11-29),
15. 11427833 - Peptide effective in control of geminivirus disease and use thereof (2022-08-30),
Ishihara Sangyo Kaisha, Ltd. is a leading global trading company based in Japan. With over 100 years of experience, the company specializes in the import and export of various products, including chemicals, minerals, metals, and machinery. They have a strong presence in international markets and provide reliable sourcing solutions to their customers. Visit their website for more information on their extensive range of products and services.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Dec 30 2025

393 Patents

#48 in Osaka

#428 in Japan

#2,293 in the World

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Osaka, Japan

Ishihara Sangyo Kaisha, Ltd.

Forward Citations = 2,282

411 inventors:

goldMedal Takahiro Haga (61 out of 62 patents)

silverMedal Kanichi Fujikawa (40 out of 40 patents)

bronzeMedal Toru Koyanagi (34 out of 35 patents)

4.  Ryuzo Nishiyama (34 out of 34 patents)

5.  Isao Yokomichi (32 out of 32 patents)

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