Shinji Oikawa

This inventor holds 8 USPTO granted patents and 7 published patent applications and 8 EPO patents. Top assignees: Mitsubishi Hitachi Power Systems, Ltd., Hitachi, Ltd., Iwaya Corporation. Active years: 1989-2019.

USPTO Granted Patents = 8 (Patent Applications = 7)

% Patents Active = 37.5

EPO Patents = 8 (Patent Applications = 12)

Average Co-Inventor Count = 3.6

ph-index = 2

Forward Citations = 14(Granted Patents)

Location History:

Tokyo, JP (1989)
Hitachi, JP (2014 - 2018)
Yokohama, JP (2019)

Company Filing History:

6 out of 651

Mitsubishi Hitachi Power Systems, Ltd.

Years Active: 1989-2019

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8 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 10378366 - Steam turbine rotor blade and method for manufacturing steam turbine rotor blade (2019-08-13),

2. 10260357 - Steam turbine rotor, steam turbine including same, and thermal power plant using same (2019-04-16),

3. 9873930 - Precipitation hardening martensitic stainless steel and steam turbine component made thereof (2018-01-23),

4. 9388702 - Precipitation hardening martensitic stainless steel, and steam turbine long blade, steam turbine, and power plant using the same (2016-07-12),

5. 9200524 - Steam turbine rotor (2015-12-01),

6. 9062362 - Precipitate hardening stainless steel and long blade using same for steam turbine (2015-06-23),

7. 8747733 - Precipitation hardenable martensitic stainless steel and steam turbine blade using the same (2014-06-10),

8. 4813908 - Motion toy having action-changing structure (1989-03-21),

Title: Shinji Oikawa: Innovator in Steam Turbine Technology

Introduction

Shinji Oikawa is a prominent inventor based in Hitachi, Japan. He has made significant contributions to the field of steam turbine technology, holding a total of 8 patents. His work focuses on enhancing the performance and reliability of steam turbine components.

Latest Patents

Oikawa's latest patents include a steam turbine rotor blade and a method for manufacturing it. This invention aims to achieve both abrasion resistance and reliability in steam turbine rotor blades. The rotor blade features a blade base material made of a titanium alloy, complemented by an erosion shield formed on its surface. The erosion shield consists of a weld overlay layer that includes a parent phase of pure titanium or a titanium alloy, along with a hard phase dispersed within it. Another notable patent involves a steam turbine rotor designed to withstand high main steam temperatures of approximately 650°C. This rotor comprises a rotor shaft made of low-cost heat-resistant ferritic steel and a rotor blade made of a Ti-Al alloy, which includes specific atomic percentages of aluminum, vanadium, chromium, and titanium.

Career Highlights

Throughout his career, Oikawa has worked with notable companies such as Mitsubishi Hitachi Power Systems and Iwaya Corporation. His experience in these organizations has allowed him to develop innovative solutions in steam turbine technology.

Collaborations

Oikawa has collaborated with esteemed colleagues, including Hiroyuki Doi and Masahiko Arai. Their combined expertise has contributed to advancements in the field.

Conclusion

Shinji Oikawa's contributions to steam turbine technology through his patents and collaborations highlight his role as an influential inventor. His work continues to impact the industry positively.