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Daidousanso Co., Ltd.

USPTO Granted Patents = 41

Forward Citations = 383

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15 inventors (with patents filed for the assignee):

Akira Yoshino (27 out of 31 patents)

Kenzo Kitano (18 out of 23 patents)

Masaaki Tahara (17 out of 21 patents)

4. Teruo Minato (16 out of 18 patents)

5. Haruo Senbokuya (16 out of 20 patents)

6. Takakazu Tomoda (6 out of 6 patents)

7. Tadashi Hayashida (5 out of 9 patents)

8. Kenji Okumura (4 out of 4 patents)

9. Hiromi Kiyama (3 out of 6 patents)

10. Yoshinori Ohmori (3 out of 4 patents)

11. Toshiharu Ohnishi (3 out of 3 patents)

12. Hidehiko Oku (2 out of 2 patents)

13. Masaki Tahara (1 out of 1 patent)

14. Massaki Tahara (1 out of 1 patent)

15. Nobuhiko Mihoichi (1 out of 1 patent)

Core Competencies:

Motor Rotary Shaft

Crank Shaft Manufacturing

Vacuum Insulation

Nitrided Nickel Alloy

Austenitic Stainless Steel

Gas Source Molecular Beam Epitaxy

Heat Insulation Pipe

Semiconductor Production

Nitriding Steel

Titanium Material Manufacturing

High Purity Nitrogen Gas

Oxygen Gas Production

41 patents: Sort by Forward Citations

1. 6179932 - Motor rotary shaft and manufacturing method thereof (2001-01-30),

2. 6020025 - Method of manufacturing a crank shaft (2000-02-01),

3. 5508106 - Method of vacuum insulation and a vacuum heat insulator used therein (1996-04-16),

4. 5505791 - Process of producing nitrided and hardened nickel alloy products (1996-04-09),

5. 5494740 - Method of high vacuum heat insulation and a vacuum heat insulator used (1996-02-27),

6. 5460875 - Hard austenitic stainless steel screw and a method for manufacturing the (1995-10-24),

7. 5445683 - Nickel alloy products with their surfaces nitrided and hardened (1995-08-29),

8. 5426998 - Crank shaft and method of manufacturing the same (1995-06-27),

9. 5419948 - Hard austenitic stainless steel screw and a method for manufacturing the (1995-05-30),

10. 5417776 - Hard austenitic stainless steel screw (1995-05-23),

11. 5403409 - Nitrided stainless steel products (1995-04-04),

12. 5401473 - Method and apparatus for treatment of NF.sub.3 gas (1995-03-28),

13. 5399211 - Method of plating steel (1995-03-21),

14. 5399199 - Apparatus for gas source molecular beam epitaxy (1995-03-21),

15. 5382318 - Hard austenitic stainless steel screw and a method for manufacturing the (1995-01-17),

Daidousanso Co., Ltd. is a leading Japanese hospitality company that specializes in luxury resorts and traditional inns. With a rich history dating back over 100 years, we offer unparalleled accommodations and services that showcase the beauty and tranquility of Japan. Our properties are designed to provide a serene escape for both domestic and international travelers, featuring exquisite architecture, premium amenities, and breathtaking natural surroundings. We strive to create unforgettable experiences for our guests, blending modern comforts with traditional Japanese hospitality. Visit our website to explore our collection of exceptional properties and start planning your idyllic retreat.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Dec 30 2025

41 Patents

#181 in Osaka

#1,898 in Japan

#16,216 in the World

Daidousanso Co., Ltd.

Forward Citations = 383

15 inventors:

Akira Yoshino (27 out of 31 patents)

Kenzo Kitano (18 out of 23 patents)

Masaaki Tahara (17 out of 21 patents)

4. Teruo Minato (16 out of 18 patents)

5. Haruo Senbokuya (16 out of 20 patents)

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