For the Inventor, By the Inventor

Enter assignee name

Dublin, Ireland

Longitude Licensing Limited

USPTO Granted Patents = 46

% Expired Patents = 2.2

EPO Patents = 4

Forward Citations = 53

Loading Chart...

Loading Chart...

27 inventors (with patents filed for the assignee):

Chikara Kondo (12 out of 79 patents)

Ryohei Kitada (4 out of 5 patents)

Masahiro Yamaguchi (4 out of 38 patents)

4. Yoshinori Matsui (3 out of 87 patents)

5. Yoshiro Riho (3 out of 49 patents)

6. Akihiko Hatasawa (3 out of 6 patents)

7. Daisuke Tsuji (2 out of 4 patents)

8. Shunsuke Asanao (2 out of 2 patents)

9. Michio Inoue (2 out of 7 patents)

10. Yorio Takada (2 out of 14 patents)

11. Sensho Usami (2 out of 3 patents)

12. Yoshinori Ikebuchi (2 out of 5 patents)

13. Atsuo Koshizuka (2 out of 34 patents)

14. Yoshitaka Nakamura (1 out of 73 patents)

15. Naohisa Nishioka (1 out of 30 patents)

Core Competencies:

Semiconductor Device

Memory System

Data Transmission Method

Through Silicon Vias

PDA Function

Impedance Calibration

Transistor Gate Structures

Chip Selection

Stacked Wafers

Voltage Generating Circuit

Solder Layer

Circuit Testing

46 patents: Sort by Forward Citations

1. RE50887 - Testing circuitry in a stacked semiconductor device using through silicon vias (2026-05-12),

2. 12380942 - Semiconductor device verifying signal supplied from outside (2025-08-05),

3. 12374385 - Semiconductor device having PDA function (2025-07-29),

4. 11948623 - Semiconductor device having PDA function (2024-04-02),

5. 11922994 - Semiconductor device verifying signal supplied from outside (2024-03-05),

6. 11817427 - Semiconductor device having through silicon vias and manufacturing method thereof (2023-11-14),

7. RE49390 - Testing a circuit in a semiconductor device (2023-01-23),

8. 11417392 - Semiconductor device having PDA function (2022-08-16),

9. 11410712 - Memory system and data transmission method (2022-08-09),

10. 11398269 - Semiconductor device verifying signal supplied from outside (2022-07-26),

11. 11211363 - Semiconductor device having through silicon vias and manufacturing method thereof (2021-12-28),

12. 11195819 - Semiconductor device (2021-12-07),

13. 11049845 - Semiconductor device having wires connecting connection pads (2021-06-29),

14. 11049809 - Semiconductor device having a reduced pitch between lead-out wirings (2021-06-29),

15. 11011471 - Semiconductor device (2021-05-18),

Longitude Licensing Limited is a technology licensing company specializing in intellectual property (IP) management and commercialization. They offer a wide range of licensing services to inventors and companies worldwide, helping them to monetize their IP assets effectively. With a team of experienced professionals, Longitude Licensing Limited provides strategic guidance, negotiations, and licensing expertise to maximize the value and return on investment for their clients. Visit their website to learn more about their services and explore licensing opportunities.

Profile summary based on public USPTO records.

Company Badge

USPTO Data Jan 1 1976 - Sep 29 2026

46 Patents

#41 in Dublin

#67 in Ireland

#15,085 in the World

Dublin, Ireland

Longitude Licensing Limited

Forward Citations = 53

27 inventors:

Chikara Kondo (12 out of 79 patents)

Ryohei Kitada (4 out of 5 patents)

Masahiro Yamaguchi (4 out of 38 patents)

4. Yoshinori Matsui (3 out of 87 patents)

5. Yoshiro Riho (3 out of 49 patents)

Please report any incorrect information to [email protected]

Loading…