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For the Inventor, By the Inventor

Kyoto, Japan

Horiba Stec, Co., Ltd.


USPTO Granted Patents = 203


Trademarks = 12

Forward Citations = 703

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169 inventors (with patents filed for the assignee):

goldMedal Tadahiro Yasuda (32 out of 33 patents)

silverMedal Masakazu Minami (18 out of 19 patents)

bronzeMedal Kotaro Takijiri (17 out of 17 patents)

4.  Kentaro Nagai (16 out of 16 patents)

5.  Shigeyuki Hayashi (15 out of 15 patents)

6.  Toru Shimizu (12 out of 13 patents)

7.  Patrick Allen Lowery (11 out of 11 patents)

8.  Kazuya Shakudo (10 out of 10 patents)

9.  Yuhei Sakaguchi (10 out of 10 patents)

10.  Yuki Tanaka (9 out of 11 patents)

11.  Kazuhiro Matsuura (8 out of 8 patents)

12.  Maximilian Martin Gundlach (8 out of 8 patents)

13.  John Thomas Dick (8 out of 8 patents)

14.  Hiroyuki Okano (7 out of 7 patents)

15.  Hidetaka Yada (7 out of 7 patents)


Core Competencies:
Flow Rate Control
Gas Analysis
Fluid Control Device
Vaporization System
Optical Measurement Cell
Pressure Control System
Concentration Control
Thermal Flow Meter
Piezoelectric Actuator
Absorbance Analysis
Flow Measurement System
Gas Delivery System

203 patents:

1. 12510181 - Fluid control valve and fluid control apparatus (2025-12-30),
2. 12492989 - Gas analyzing device (2025-12-09),
3. 12474722 - Flow rate control apparatus, flow rate control method, and program recording medium in which program for flow rate control apparatus is recorded (2025-11-18),
4. 12467856 - Gas analysis device and gas analysis method (2025-11-11),
5. D1101105 - Fluid control device (2025-11-04),
6. 12463069 - Wafer temperature control device, wafer temperature control method, and wafer temperature control program (2025-11-04),
7. D1100142 - Fluid control device (2025-10-28),
8. 12429420 - Gas analysis apparatus and gas analysis method (2025-09-30),
9. 12399516 - Flow ratio controller system operating in alternative control modes (2025-08-26),
10. 12399513 - Vaporization device with integral gain switiching portion for valve controller (2025-08-26),
11. 12385575 - Fluid control valve and fluid control device (2025-08-12),
12. 12339682 - Fluid control device, fluid control system, storage medium storing a program for fluid control device, and fluid control method (2025-06-24),
13. 12332175 - Optical measurement cell, optical analyzer, window forming member, and method of manufacturing optical measurement cell (2025-06-17),
14. 12331401 - Vaporization system (2025-06-17),
15. 12327750 - Electrostatic chuck device, pressure calculation method and program (2025-06-10),
HORIBA STEC, CO., LTD. is a leading global manufacturer of semiconductor equipment and fluid control products. With over 40 years of industry experience, HORIBA STEC designs and develops advanced systems and solutions for the semiconductor, flat panel display, and photovoltaic industries. Our innovative products range from mass flow controllers and mass flow meters to pressure controllers and vacuum gauges, serving as critical components in critical processes. We are committed to delivering high-quality, reliable, and precise solutions that meet the demanding requirements of our customers worldwide.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Jan 6 2026

203 Patents

#23 in Kyoto 615-0031

#679 in Japan

#4,049 in the World

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Kyoto, Japan

Horiba Stec, Co., Ltd.

Forward Citations = 703

169 inventors:

goldMedal Tadahiro Yasuda (32 out of 33 patents)

silverMedal Masakazu Minami (18 out of 19 patents)

bronzeMedal Kotaro Takijiri (17 out of 17 patents)

4.  Kentaro Nagai (16 out of 16 patents)

5.  Shigeyuki Hayashi (15 out of 15 patents)

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