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For the Inventor, By the Inventor

Tokyo, Japan

Hitachi Ulsi Engineering Corp.


USPTO Granted Patents = 87

% Expired Patents = 5.7


Forward Citations = 2,373

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308 inventors (with patents filed for the assignee):

goldMedal Shooji Kubono (10 out of 23 patents)

silverMedal Hitoshi Miwa (9 out of 64 patents)

bronzeMedal Osamu Tsuchiya (8 out of 44 patents)

4.  Hitoshi Tanaka (8 out of 59 patents)

5.  Tatsuya Ishii (7 out of 93 patents)

6.  Kiyoshi Matsubara (6 out of 62 patents)

7.  Kunihiro Komiyaji (6 out of 8 patents)

8.  Koichiro Ishibashi (5 out of 176 patents)

9.  Shuji Ikeda (5 out of 142 patents)

10.  Yasushi Akao (5 out of 52 patents)

11.  Keiichi Yoshida (5 out of 47 patents)

12.  Takeshi Wada (5 out of 42 patents)

13.  Shumpei Kawasaki (5 out of 27 patents)

14.  Sadayuki Morita (5 out of 21 patents)

15.  Shoji Kubono (5 out of 35 patents)


Core Competencies:
Nonvolatile Memory
Semiconductor Memory
Integrated Circuit
Dynamic RAM
Data Processing
Flash Memory
Microcomputer
Memory System
Sense Amplifier
Memory Device
Voltage Converter
Parallel Processor

87 patents:

1. 7145805 - Nonvolatile memory system, semiconductor memory, and writing method (2006-12-05),
2. 7072222 - Nonvolatile memory system, semiconductor memory and writing method (2006-07-04),
3. 7023071 - Semiconductor integrated circuit device and process for manufacturing the same (2006-04-04),
4. 7022568 - Semiconductor integrated circuit device and process for manufacturing the same (2006-04-04),
5. 6906952 - Nonvolatile semiconductor memory device and data writing method therefor (2005-06-14),
6. 6873552 - Nonvolatile memory system, semiconductor memory, and writing method (2005-03-29),
7. 6163485 - Semiconductor integrated circuit data processing system (2000-12-19),
8. 6157573 - Nonvolatile memory system, semiconductor memory, and writing method (2000-12-05),
9. 6134148 - Semiconductor integrated circuit and data processing system (2000-10-17),
10. 6121681 - Semiconductor device (2000-09-18),
11. 612168 - Semiconductor device (2000-09-19),
12. 6115319 - Dynamic RAM having word line voltage intermittently boosted in (2000-09-05),
13. 6097663 - Semiconductor IC device having a memory and a logic circuit implemented (2000-08-01),
14. 6097081 - Semiconductor device having adhesive between lead and chip (2000-08-01),
15. 6091640 - Semiconductor integrated circuit with multiple write operation modes (2000-07-18),
Hitachi Ulsi Engineering Corp. is a leading provider of semiconductor manufacturing equipment and services. With over 40 years of experience in the industry, we offer innovative solutions for advanced semiconductor manufacturing processes. Our cutting-edge technologies and dedication to quality have made us a trusted partner for leading semiconductor companies worldwide.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Sep 22 2026

87 Patents

#594 in Tokyo

#1,229 in Japan

#8,755 in the World

Tokyo, JP
Tokyo, Japan

Hitachi Ulsi Engineering Corp.

Forward Citations = 2,373

308 inventors:

goldMedal Shooji Kubono (10 out of 23 patents)

silverMedal Hitoshi Miwa (9 out of 64 patents)

bronzeMedal Osamu Tsuchiya (8 out of 44 patents)

4.  Hitoshi Tanaka (8 out of 59 patents)

5.  Tatsuya Ishii (7 out of 93 patents)

Please report any incorrect information to [email protected]
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