The dataset of Japanese patents and patents’ holding firms in green vehicle powertrains field

Jiang, Jiaming; Baba, Kensuke; Zhao, Yu; Feng, Junshi; Kumagai, Sou

doi:10.1016/j.dib.2022.108524

Cited by 3 publications

(3 citation statements)

References 11 publications

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“…html and use a combined search strategy of International Patent Classification (IPC) codes and keywords. Applications of similar methods that have been previously reported include those of Jiang et al (2022), the authors proposed a method of combining IPC and keywords to define "green" patents in vehicle powertrain systems, based on data of patent applications to the Japan Patent Office as recorded in EPO's PATSTAT. 1 Borgstedt et al (2017) proposed a search strategy using IPC-classes and keywords is introduced that reveals all relevant patents and clearly differentiated four vehicle powertrain technologies.…”

Section: Methodsmentioning

confidence: 99%

“…From the present search, we obtained 37,476 patent applications by 298 corporations during the period 1999-2022. When analyzing patents, it is necessary to consider the social situation of each country, including language background (Jiang et al, 2022). Thus, since the names of Japanese corporates are written in both kanji and katakana, when we searched for one corporate's patents, we searched in both kanji and katakana.…”

Section: Methodsmentioning

confidence: 99%

“…Furthermore, patents are the most important channel of information flow in Japan (Cohen et al, 2002). Although Jiang et al (2022) have searched for "green" patents in the vehicle powertrains field, and Jiang et al (2023) collected cited information about them, there have not been reports of research on GX patents, because of a delay in the development of a database, which is a void that we are trying to fill. We generated this dataset for GX patent applications of Japanese corporations and published GX patents in Mendeley Data, which is available to everyone.…”

Section: Introductionmentioning

confidence: 99%

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A data set of Japanese corporates’ green transformation technologies patents

Jiang,

Zhao,

Feng

2024

F1000Res

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Abstract* In 2020, the Government of Japan declared 2050 “carbon neutral” and launched a long-term strategy to create a “virtuous cycle of economy and environment.” Japanese corporations possess many technologies that contribute to decarbonization, which is important for expanding investments in green transformation technology inventory (GXTI) development. Patent data are the most reliable measure of business performance for applied research and development activities when investigating knowledge domains or technological evolution. Our paper describes a Japanese patent dataset of Japanese corporations’ green transformation (GX) patent applications on the Japan Platform for Patent Information, using a search method of bombinating International Patent Classification (IPC) codes and keywords. The dataset contains 37,476 GX patent applications from 298 corporations during the period 1999–2022.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A data set of Japanese corporates’ green transformation technologies patents

Jiang,

Zhao,

Feng

2024

F1000Res

Self Cite

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Technological and Scientific Prospection on Pigments Produced by Microorganisms

Souza

Umsza-Guez

2023

BIOT

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Background: Interest in natural pigments has grown due to the negative aspects caused by synthetic options, which trigger damage to the body and the environment. Research with natural pigments produced by microorganisms becomes viable in relation to other pigments extracted from animals or plants, as microorganisms have advantages in terms of versatility and productivity. Thus, production technologies are protected by patents. Method: To evaluate the evolution of research and technological development on producing natural pigments by different microorganisms through scientific and technological prospection. Scientific prospecting was done by searching articles published from 2010 to 2020 in the Scopus, Science Direct, and Web of Science databases. Technological prospecting was carried out with patents obtained from the European Patent Office (ESPACENET) database. Results: The searches were based on the keywords “pigment” and “dye” crossed with microalgae, fungi, bacteria and yeast. A total of 2.811 articles and 451 patents were selected. Scientific prospecting has shown interest in alternative cultivation media, and among the microorganisms that produce pigments, fungi and microalgae are the most studied. Conclusion: Technological prospecting showed that 375 (83%) recovered patent documents refer to the protection of pigment extraction and production techniques and that the largest patent holders are private companies, followed by Chinese universities.

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Technology Trend Analysis of Japanese Green Vehicle Powertrains Technology Using Patent Citation Data

Jiang

Zhao

2023

Energies

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As automobiles are major contributors to greenhouse gas emissions, the technological shift towards vehicle powertrain systems is an attempt to lower problems such as emissions of carbon dioxide and nitrogen oxides. Patent data are the most reliable measure of business performance for applied research and development activities when investigating knowledge domains or technology evolution. This is the first study on Japanese patent citation data of the green vehicle powertrains technology industry, using the social network analysis method, which emphasizes centrality estimates and community detection. This study not only elucidates the knowledge by visualizing flow patterns but also provides a precious and congregative method for verifying important patents under the International Patent Classification system and grasping the trend of the new technology industry. This study detects leading companies, not only in terms of the number of patents but also the importance of the patents. The empirical result shows that the International Patent Classification (IPC) class that starts with “B60K”, which includes hybrid electric vehicle (HEV) and battery electric vehicle (BEV), is more likely to be the technology trend in the green vehicle powertrains industry.

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The dataset of Japanese patents and patents’ holding firms in green vehicle powertrains field

Cited by 3 publications

References 11 publications

A data set of Japanese corporates’ green transformation technologies patents

A data set of Japanese corporates’ green transformation technologies patents

Technological and Scientific Prospection on Pigments Produced by Microorganisms

Technology Trend Analysis of Japanese Green Vehicle Powertrains Technology Using Patent Citation Data

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