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For the Inventor, By the Inventor

Nagoya, Japan

Aiphone Co., Ltd.


USPTO Granted Patents = 78

% Expired Patents = 6.4



Trademarks = 3

Forward Citations = 1,001

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52 inventors (with patents filed for the assignee):

goldMedal Kotaro Takahata (17 out of 18 patents)

silverMedal Toshio Hotta (16 out of 16 patents)

bronzeMedal Seiya Yamakawa (11 out of 11 patents)

4.  Yuta Shimomura (8 out of 8 patents)

5.  Masashi Hattori (6 out of 53 patents)

6.  Akira Kai (6 out of 6 patents)

7.  Kimiaki Fujishima (6 out of 6 patents)

8.  Ryoji Uno (6 out of 6 patents)

9.  Hiroshi Matsui (6 out of 6 patents)

10.  Kazuya Yoshida (5 out of 5 patents)

11.  Kenji Yasukawa (4 out of 4 patents)

12.  Manabu Yamada (4 out of 4 patents)

13.  Katsuhiko Ibuki (4 out of 4 patents)

14.  Koutarou Takahata (4 out of 4 patents)

15.  Tatsuru Shinozaki (3 out of 3 patents)


Core Competencies:
Intercom Device
Nurse Call System
Doorbell System
Multiple Dwelling House
Collective Housing
Interphone
Building Controller
Communication System
Television Intercom
Channel Assignment
Microphone Unit

78 patents:

1. 12425550 - Intercom device and control system (2025-09-23),
2. 12294671 - Multiple dwelling house interphone system (2025-05-06),
3. 12219096 - Multiple dwelling house interphone system (2025-02-04),
4. 12219085 - Multiple dwelling house interphone system (2025-02-04),
5. 12113927 - Multiple dwelling house interphone system (2024-10-08),
6. 12059229 - Nurse call system (2024-08-13),
7. 12052384 - Multiple dwelling house interphone system (2024-07-30),
8. 11758054 - Multiple dwelling house interphone system (2023-09-12),
9. 11515034 - Nurse call system (2022-11-29),
10. 11510256 - Configuration method of Wi-Fi doorbell, doorbell, housing complex communication system, and climate information providing system (2022-11-22),
11. 11100775 - Doorbell system, location notification system, and intercom system (2021-08-24),
12. 10944940 - Intercom system for collective housing (2021-03-09),
13. 10841430 - Intercom system and data transfer method in said system (2020-11-17),
14. 10757266 - Terminal device, and intercom system provided with terminal device (2020-08-25),
15. 10721361 - Interphone system and setting apparatus (2020-07-21),
Aiphone Co., Ltd., headquartered in Nagoya, Japan, specializes in the development and manufacturing of advanced intercom systems. The company focuses on a range of communication technologies, including intercom devices, nurse call systems, and doorbell systems, catering to various environments such as multiple dwelling houses and collective housing. Aiphone is recognized for its commitment to enhancing communication and security through innovative solutions, making it a key player in the intercom and building communication sectors.
Profile summary based on public USPTO records.

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USPTO Data Jan 1 1976 - Sep 29 2026

Aiphone Co., Ltd.
78 Patents

#19 in Nagoya

#1,322 in Japan

#9,661 in the World

Nagoya, JP
Nagoya, Japan

Aiphone Co., Ltd.

Forward Citations = 1,001

52 inventors:

goldMedal Kotaro Takahata (17 out of 18 patents)

silverMedal Toshio Hotta (16 out of 16 patents)

bronzeMedal Seiya Yamakawa (11 out of 11 patents)

4.  Yuta Shimomura (8 out of 8 patents)

5.  Masashi Hattori (6 out of 53 patents)

Please report any incorrect information to [email protected]
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