Thirty-two U.S. patents issued to Toyota entities on August 4, 2026. Counting them requires summing six separate assignee strings on the record — Toyota Jidosha Kabushiki Kaisha at twenty-four, Toyota Motor Engineering & Manufacturing North America across two casings at four, Toyota Research Institute across two casings at three, and Toyota Motor Corporation at one. Read any single string and the day looks a third smaller than it is.

The portfolio that issued splits into four recognisable groups. Autonomy perception is the largest: monocular depth estimation trained against a language model via a semantic loss, shared latent spaces for volumetric rendering of novel viewpoints, and radar projections that render angular uncertainty as shaded regions fused over camera imagery. A vehicle-operations group covers storage-mode switching for autonomous driving data when onboard capacity runs low and control of unmanned mobile objects entering a conveyor in manufacturing. Energy and safety hardware supply a hydrogen tank valve with a fusible plug, a battery pack with a deliberately weakened frame region in its case walls, sub-battery capacity measurement tied to the temperature floor of the automated driving system, and an airbag built into the seat belt itself. And a materials group runs from a photovoltaic interconnector with expanding and contracting portions to the record below.

The conflict the lead grant resolves

US12698398B2 is assigned to Toyota Motor Engineering & Manufacturing North America, Inc. and names Songtao Wu, Debasish Banerjee, Torin C. Peck and Cynthia Gazepis Templeman. It addresses a problem that sits exactly where vehicle styling meets vehicle sensing. Lidar works by timing reflected near-infrared light. Conventional deep-black automotive paint gets its colour from carbon black, which absorbs broadly — including across the near-IR. A black car is therefore a poor lidar target, and it is poor in both directions: for its own sensors reading other black vehicles, and for every other vehicle's sensors reading it.

A reflectivity of the encapsulated palette flake in a near-IR and LiDAR spectrum of electromagnetic radiation that is between 10% and 90%.— U.S. Patent No. 12,698,398, source

The claimed flake separates the two spectra rather than compromising between them. Claim 1 recites a palette flake with a layer on at least one surface, a blackness My between 110 and 140, visible reflectivity of 10% or less, and near-IR and lidar reflectivity between 10% and 90%. Dependent claims tighten it: 5% or less in the visible, 60% to 90% in the near-IR, blackness from 125 to 140. Claim 4 identifies the layer as copper oxide; claim 5 gives the substrate as titanium-dioxide-coated glass, silica-coated glass or mica. A flake that is blacker than a jet-black reference to the eye and reflects most of what a lidar transmits is not a trade-off; it is two different optical requirements met by one particle.

The commercial reach comes from claims 8 and 9, which is where a materials patent turns into an automotive one. Claim 8 is to a paint comprising a binder and a plurality of these flakes, with the finished colour constrained to a CIELAB lightness of 40 or less. Claim 9 is a single line: a vehicle comprising a body panel coated in that paint. A grant that reaches the painted panel covers the article a supplier ships, not merely the pigment a chemical maker sells.

Claim 10 and its dependents supply the process, and it is ordinary wet chemistry rather than anything exotic: combine a base solution of palette flakes and a precipitating agent with a copper-source solution, dry the precipitate, calcine it. The recited windows are specific — sodium hydroxide, sodium carbonate or ammonium carbonate as the precipitating agent; copper nitrate, sulphate, chloride or acetate as the source; flake concentration of 50 to 150 grams per litre; drying at 100–150 °C for at least two hours; calcining at 200–500 °C, narrowed to 300–450 °C. Precipitation and calcination scale in existing pigment plants, which is a different proposition from a coating that needs vapour deposition per flake.

The blackness figure deserves a word, because it is the claim element least familiar outside coatings work. My is a jetness metric used in the pigment industry to rank blacks against one another rather than a reflectance percentage; higher values indicate a deeper, more neutral black, and the premium automotive blacks that carbon black is used to achieve sit in the range the claim occupies. Reciting My alongside a visible-reflectivity ceiling means the claim is asserting appearance parity with the incumbent material, not merely darkness in the abstract. Without that element the claim would read on any dark coating that happens to be near-IR transparent.

What is and is not on the record

One drafting artefact survives into the issued abstract and is preserved in the quotation above: the sentence reads “A reflectivity… that is between 10% and 90%,” with a relative pronoun left over from an earlier construction. The corresponding claim language is clean.

The record discloses no product, no model, no colour name, no supplier, no volume, no cost and no timing. It does not state that any vehicle has been painted with this material or that any programme intends to. The connection to lidar is drawn by the patent itself — the term is in the title, the abstract and claim 1 — so the sensing rationale is disclosed rather than inferred; what is not disclosed is anything about commercialisation. Readers should also note that a grant reflects a filing made years earlier, so the August 4 issue day indicates what has now been allowed, not what is currently being developed.