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For the Inventor, By the Inventor

Hitachi, Japan

Yujiro Tatsuno

This inventor holds 5 USPTO granted patents. Top assignees: Hitachi, Ltd., Hitachi Microsoftware Systems, Inc.. Active years: 1976-1993.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yujiro Tatsuno. Retrieved from https://idiyas.com/inventor/yujiro-tatsuno

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

USPTO Granted Patents = 5

% Patents Active = 100.0

Average Co-Inventor Count = 4.2

ph-index = 4

Forward Citations = 126(Granted Patents)


Location History:

  • Hitachi, JA (1976)
  • Hitachi, JP (1989 - 1993)

Company Filing History:

goldMedal5 out of 42,726 
 
Hitachi, Ltd.
 patents
silverMedal1 out of 10 
 
Hitachi Microsoftware Systems, Inc.
 patents
where one patent can have more than one assignee

Years Active: 1976-1993

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5 patents (USPTO):Explore Patents
1. 5241655 - Menu presentation method and data processing apparatus (1993-08-31),
2. 4954818 - Multi-window display control system (1990-09-04),
3. 4858171 - Word processor with selective placement of printhead for printing of (1989-08-15),
4. 3980405 - Cathode-ray tube picture projection apparatus (1976-09-14),
5. 3947190 - Electrophotographic apparatus for recording images in superimposed (1976-03-30),

Title: Yujiro Tatsuno: Innovator in Data Processing Technology

Introduction

Yujiro Tatsuno is a notable inventor based in Hitachi, Japan. He has made significant contributions to the field of data processing, holding a total of 5 patents. His work has focused on enhancing user interaction and display systems in data processing apparatuses.

Latest Patents

One of his latest patents is a "Menu presentation method and data processing apparatus." This invention features an input unit for entering operator data and commands, along with a display unit that showcases a work area for data processing. The display unit is designed to open a job menu window, allowing operators to select new jobs through icons displayed at the center of the screen.

Another significant patent is the "Multi-window display control system." This system includes a central processing unit, a main memory for storing graphic or character data, and an external memory. It also features an input device for entering graphic or character data, a shared memory for temporarily storing this data, and a display processing means for preparing multiple display data. The system is designed to manage overlapping display data efficiently, ensuring a smooth user experience.

Career Highlights

Yujiro Tatsuno has worked with prominent companies such as Hitachi, Ltd. and Hitachi Microsoftware Systems, Inc. His experience in these organizations has allowed him to develop and refine his innovative ideas in data processing technology.

Collaborations

Throughout his career, Yujiro has collaborated with notable colleagues, including Masaki Kawase and Takatoshi Ikeda. These partnerships have contributed to the advancement of his projects and innovations.

Conclusion

Yujiro Tatsuno's contributions to data processing technology through his patents and collaborations highlight his role as a significant innovator in the field. His work continues to influence the way data is processed and displayed, showcasing the importance of innovation in technology.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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