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For the Inventor, By the Inventor

Tokyo, Japan

Takashi Arai

USPTO Granted Patents = 92 

 

Average Co-Inventor Count = 2.5

ph-index = 12

Forward Citations = 487(Granted Patents)

Forward Citations (Not Self Cited) = 475(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Satsute, JP (1997)
  • Hikari, JP (1995 - 2007)
  • Ibaraki, JP (2006 - 2007)
  • Futtsu, JP (2007)
  • Ryugasaki, JP (2010)
  • Machida, JP (2000 - 2017)
  • Musashino, JP (2017)
  • Tsu, JP (2017)
  • Kisarazu, JP (2020)
  • Saitama, JP (2007 - 2023)
  • Tokyo, JP (1987 - 2024)

Company Filing History:

goldMedal32 out of 90,697 
 
Canon Kabushiki Kaisha
 patents
silverMedal14 out of 3,557 
 
Nippon Steel Corporation
 patents
bronzeMedal10 out of 287 
 
Mitsubishi Heavy Industries Engine & Turbocharger, Ltd.
 patents
4. 8 out of 1,328 
 
Yokogawa Electric Corporation
 patents
5. 7 out of 4,629 
 
Mitsubishi Heavy Industries Limited
 patents
6. 5 out of 15,906 
 
Mitsubishi Electric Corporation
 patents
7. 4 out of 21,893 
 
Honda Motor Co., Ltd.
 patents
8. 3 out of 1,101 
 
Nippon Steel Sumitomo Metal Corporation
 patents
9. 3 out of 61 
 
Jxtg Nippon Oil & Energy Corporation
 patents
10. 3 out of 2,099 
 
Autonetworks Technologies, Limited
 patents
11. 3 out of 6,158 
 
Sumitomo Wiring Systems, Limited
 patents
12. 3 out of 10,250 
 
Sumitomo Electric Industries, Limited
 patents
13. 3 out of 432 
 
Kyushu University
 patents
14. 2 out of 1,326 
 
Mitsubishi Jukogyo Kabushiki Kaisha
 patents
15. 2 out of 640 
 
Daicel Corporation
 patents
16. 1 out of 35,705 
 
Nec Corporation
 patents
17. 1 out of 58,130 
 
Sony Corporation
 patents
18. 1 out of 2,464 
 
Ntn Corporation
 patents
19. 1 out of 42 
 
Sony Mobile Communications Japan, Inc.
 patents
20. 1 out of 1 
 
Collective Intelligence
 patent
21. 1 out of 135 
 
Eneos Corporation
 patents
22. 1 out of 680 
 
Socionext Inc.
 patents
where one patent can have more than one assignee

Years Active: 1987-2025

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Areas of Expertise:
Electric Furnace
Fuel Cell System
Turbocharger
Photovoltaic Power Generation
Compressor Wheel
Blood Filter
Variable Geometry Turbocharger
Robotic Devices
Temperature Difference Power Generation
Metal Surface Coating
Thin Strip Manufacturing
Angle Detection Devices
92 patents (USPTO):Explore Patents
1. 12463483 - Coil for motor, method for manufacturing coil for motor, and motor (2025-11-04),
2. 12348517 - Control system, control apparatus, device controlling method and recording medium (2025-07-01),
3. 11898797 - Electric furnace (2024-02-13),
4. 11859833 - Control device, control method for water heater, and program (2024-01-02),
5. 11839156 - Temperature difference power generation apparatus and measurement system (2023-12-05),
6. 11677083 - Method of operating fuel cell system, and fuel cell system (2023-06-13),
7. 11618072 - Thin strip manufacture method (2023-04-04),
8. 11519612 - Control device, control method for water heater, and program (2022-12-06),
9. 11506086 - Turbine housing and turbo charger provided with same (2022-11-22),
10. 11493376 - Level indicator with protective cover (2022-11-08),
11. 11461037 - Data collection system and data collection method (2022-10-04),
12. 11458534 - Cast strip manufacturing method (2022-10-04),
13. 11419970 - Blood filter (2022-08-23),
14. 11405276 - Device configuration management apparatus, system, and program (2022-08-02),
15. 11344653 - Bone fixing material (2022-05-31),

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