Inventor
RYU HIRAYAMA
Inventor
JP
Overview
Patents· 19 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H01Fprimary
H01FMagnets26%
H02KDynamo-electric machines22%
C09JAdhesives19%
Y02TClimate change mitigation technologies related to transportation12%
B32BLayered products, i.e. products built-up of strata of flat or non-flat, e.g. cellular or honeycomb, form9%
C22CAlloys3%
B21DWorking or processing of sheet metal or metal tubes, rods or profiles without essentially removing material1%
B30BPresses in general1%
C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients1%
C21DModifying the physical structure of ferrous metals1%
PatentTitleYear
12,580,463Bonded and stacked core manufacturing method202612,500,027Wound core202512,479,199Bonded and stacked core manufacturing method and bonded and stacked core manufacturing apparatus202512,404,805Combined cycle power generation facility202512,394,552Wound core202512,381,028Laminated core and electrical device202512,261,482Laminated core and electric motor202512,154,711Adhesively-laminated core for stator and electric motor202412,126,217Core block, laminated core, and electric motor202412,081,068Laminated core with some electrical steel sheets adhered with adhesive and some electrical steel sheets fixed to each other202412,074,476Adhesively-laminated core for stator and electric motor202412,068,097Laminated core, core block, electric motor and method of producing core block202411,996,231Laminated core and electric motor202411,979,059Laminated core and electric motor202411,973,369Laminated core with center electrical steel sheets adhered with adhesive and some electrical steel sheets fixed to each other on both ends of the center sheets202411,923,130Laminated core and electric motor202411,915,860Laminated core and electric motor202411,863,017Laminated core and electric motor202411,710,990Laminated core with circumferentially spaced adhesion parts on teeth2023Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2023–2026Patents assigned to NIPPON STEEL CORP (18)· patent assignee history
2023–2026Based in JP· patent location history
2025Patents assigned to TOAGOSEI CO LTD (1)· patent assignee history
2025Patents assigned to TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORP (1)· patent assignee history
2025Patents assigned to TOSHIBA KK (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| NIPPON STEEL CORP | 18 | 2023–2026 |
| TOAGOSEI CO LTD | 1 | 2025 |
| TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORP | 1 | 2025 |
| TOSHIBA KK | 1 | 2025 |
Locations
| Location | Patents | Span |
|---|---|---|
| JP | 19 | 2023–2026 |